> Hi, guys. Since Internet info is not recognized as official, I was
> wondering if any of the LoreMasters can confirm that the following does
> not contradict the source books. I have seen NG and CG as her alignment -
> which one is she?
> Thank you!
> General Information: Alignment -NG
> Portfolio: Forests, rangers, dryads
> Realm: Major Spheres: All, animal, elemental, healing, plant, and
> weather
> Minor Spheres: Divination,
> Worshipers:
> Symbols: The unicorn (or the white star on a green leaf)
> Colors:
> Holy Days:
> Sacrifices:
> Description: She appears as a young maiden with leaves and moss for hair,
> garbed in green
> and yellow.
> Mielikki is allied with Silvanus. There is always the possiblility that
> Mielikki will act to defend or avenge any of her forest dwellers or the
> forest
> itself. This will most likely take the form of huge packs of wolves and
> flights
> of hawks, also any clerical magic will be of little use as she will most
> likely
> negate its use. Those seeking to stay on her good side will be carfull of
> the
> forest areas, such as planting a tree or two for each tree they damage.
> Clerical Information:
> Clericy Name:
> Main Temple Location:
> Clericy Description: Mielikki's priests are rangers, for the most part,
> with special
> powers. Most rangers venerate Mielikki as their diety and she grants the
> bulk
> of their spells when they attain sufficent level. As a result the ranger
> player
> character class and the priests of Mielikki tend to work closely together.
> The ceremonial dress of the followers of Mielikki is a simple tabard and
> trousers with a short cape. The shirt is usually short-sleeved, but long-
> sleeved in winter. The symbol of Meilikki is worn over the heart.
> The colors of the ceremonial garb vary with the seasons, each season
> having a base color and an accent. Winter is white with green accents,
> spring is green with yellow accents, summer yellow with red accents and
> fall red with white accents.
> The goddess known as Mielikki, Lady of the Forest, is the patron of
> forests, rangers, and dryads. The Lady wanders the forests of all Toril,
> although the followers of her faith are concentrated in northern Faerun.
> There is some evidence that Mielikki was an elven demigoddess before the
> rise of humans, and she is often depicted with mixed elven and human
> features. Certainly she is worshipped by humans, elves, half-elves, and
> dryads alike.
> Allies: Mielikki is assisted by two divine beings of lesser power. On rare
> occasions when Mielikki rides into battle, Lurue, the Unicorn, serves as
> her mount. Lurue is a beast cult deity, the queen of talking beasts and
> intelligent creatures. Lurue is also known as 'Silverymoon', and is often
> worshipped in the city of the same name. Gwaeron Windstrom is a demigod
> who also serves Mielikki, and is a master of tracking and interpreting
> woodland signs. He is tall and physically impressive, with a white beard
> that constantly whips about in the wind, and long white hair. He can track
> infallibly through any conditions, in or on any terrain. Mielikki herself
> often serves Silvanus the Oak Father, god of nature and patron of druids.
> In fact some legends relate that she is the offspring of a dalliance
> between Silvanus and the elvish goddess of romantic love and beauty called
> Hannali Celanil. In any case, although Mielikki numbers no druids among
> her faithful, her followers certainly count them as strong allies, and
> often work alongside the followers of Silvanus.
> Oragnization: The followers of Mielikki do not organize themselves into
> official temples, rather they assemble in peaceful forest glades in
> collective worship to the goddess. The faithful of Mielikki organize
> themselves into three branches of devotion, known as the Triad.
> The first branch of the Triad are the heart of the faith, and serve as
> voices of the souls of the trees themselves. Collectively these followers
> are referred to as the Heartwoods, and include dryads, hamadryads, and
> treants.
> The second branch of the Triad are the spiritual followers of Mielikki,
> known as the Arms of the Forest. The Forestarms, as they are often called,
> are the closest fit to the traditional clerics found throughout the
> Realms. Although they are not druids, Forestarms serve a similar role
> protecting the forests of the world.
> The third branch of the Triad are the physical followers of Mielikki,
> known as the Needles. The Needles are rangers, who act as the warrior arm
> of the faith, and serve a defensive role protecting the forests from
> marauders, hurnanoids, and the followers of the god Malar. Included in
> this branch is a small religious order of woodland knights such as the
> Shadoweirs.
> Finally the lay followers of Mielikki include many woodsmen, the
> occasional elf (especially wood elves), a few bards, and many of the
> Harpers, a secretive organization for good located in the northern Realms.
I may not be a loremaster, but a have a few free minutes and a copy of faiths and pantheons. 
Most of what i see is correct. She is NG, Intermideate Deity, has autumn, dryads, forest creatures, forests, and rangers for a portfolio. Her worshippers are druids, fey creatures, foresters, and rangers, of CG, LG, or NG. Her favored weapon is the scimitar "Hornblade".
She is the daughter of Silvanus, ans sister of Eldath. Gwaeron Windstorm and Shiallia serve her, and Lurue the Unicorn is her mount. She is friendly with Shaundakul and Lathander, and opposes evil deities, espcially Malar, Talos, and Talona.
The three branches are: Heartwoods (dryads and treants), Needles (rangers), and Arms of the Forest (druids and clerics).
You pretty much cover every thing else listed in the book I think. I don't think she has a main temple, as most worship her in the forest or small glades. The worshippers are refered to as Mielikkians, which answers your second question I think. She is a lvl 20 Ranger and lvl 20 Druid with 940 hit points. That's pretty much all the important stuff.
Hopes this helps! 
