ABR Gimp Issues

I've been searching online and on here and haven't found a solution. Basically every .abr I use in GIMP does not employ the alpha channels for the brushes originally created in PS. Is there any easy work around to make this work out? I remember finding a application that disassembled a .abr into component pngs, unfortunately I can't remember the name and its located on the hard drive of my old PC somewhere around here. Any help welcome and thanks.

I've used abrMate in the past: http://www.texturemate.com/abrMate

-Rob A>

That's the one I had; couldn't remember the name. If there was anyone who could help me I knew it would be you.