people have said somehting about a .abr viewer and it allows u to save them as an imagepack.. i'll edit this when i find it..
Edit: okay, here we go! lol
1. go to
http://abrviewer.sourceforge.net/ and download & install the abr viewer somftware
2. open the brush u want..

3. now u can export them as a transparent picture..

4. Now open up one fo the brushes u just exported in PSP. Go to your brush tool and open up the brush list.. on the bottom right corner hit this button.. now name ur brush something

5. Now u should find the brush u made in the list.
6. in the abr program, u can delete the current brush set there so u can make more.. just right click on the name in the lower left box and select clear.. [u can actually export them that way too]

i hope this wasn't too confusing. if u need more help, ask me =]