I noticed filter forge accesses alpha information diffrently then is normal. Its not the alpha channal under channels, its not a layer mask, its something else. From what I can tell its the PS defined alpha for deleted information, aplied layermasks, and some transparancies(like PNG). This is not normally accessible. I also realized I could turn it off, which makes editing semi-transparent images much easyer.
So I have made Unmask, a script and filter which move that alpha info into a layermask so it can be edited with ease.
filter forge settings:
R:R
G:G
B:B
A:255
Requirements:
Windows x32, x64 (7, vista, XP)
Photoshop CS4 or CS3 (x32 only)
64bit Phtoshop will not work because of the required filter. 64bit windows running 32bit Photoshop works fine.