They're stickied. Shouldn't take much research.
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NAND Boot Testing - 03-08: Full NAND FRX05 Testing (Data not working for some) "
Obviously it's TESTING, therefore not quite ready for primetiem (as arrrghhh said).
[BUILD] **Complete Froyo Bundle!!** FRX05 - "Stable" - Camera!
Froyo, with a quick search on Google, is Android 2.2. The "Stable" part is what you want to look at. This is the latest stable build, therefore that's why it is stickied and named "Stable." Read the first page and usually the last two pages for information on problems and workarounds, whatever.