A: Gimp
1) Get Gimp
2) Open up image with gimp
3) Add an alpha channel via [Layer]/[Transparency]/[Add alpha channel]
4) Select the fuzzy selector tool
5) Double click image
6) Click [Edit]
7) Click [Clear]
8) Save


B: Seashore
1) Get Seashore
2) Open image with seashore
3) Enable alpha channel via [Layer]/[Enable alpha channel]
4) Select the fuzzy selector tool
5) Double click image
6) Click [Edit]->[Delete]
7) Save

TIP: SEASHORE TENDS TO BE A FASTER AND MORE COMPACT PROGRAM
NOTE: SEASHORE IS ALSO A LOT EASIER TO USE






TIP: REPLACE [] WITH STANDARD HYPERTEXT PROTOCOL.
TIP: REPLACE WHATEVER IS BETWEEN THE [] WITH YOUR INFORMATION.



Hope that helps!