All of these texture packs work with Neoalpha. If you have a texture pack that works with Neoalpha, you can send it to my e-mail address and I'll add it on here.
Official texture packs:
Pre-Halloween Default 2.1 (mirror links coming soon)
Pre-Halloween Default 2.0 (mirror link) (mirror link 2) (not recommended, please use version 2.1 instead)
Pre-Halloween Default (mirror link) (mirror link 2) (not recommended, please use version 2.1 instead)
Other texture packs:
1.14 Texture Pack (mirror link)
Chimney's Painterly Pack (mirror link)
DokuCraftDark (mirror link)
DokuCraftLight (mirror link)
GERUDOKU (mirror link)
oCd (mirror link)
Super Mario Bros. (mirror link)