advice

How do you guys save textures so that when you make icons and post them to your livejournal you can credit the texture makers?

I'll be honest, I just recently started using gimp, and got so excited that I saved textures w/out noting who the creaters were.  I haven't posted the icons I've created yet b/c I dont' want to upset/disrepsect that artists that made the textures.

Any advice would be greatly appreciated :)