image adjusting

i have this image: http://ukazto.com/?img=1058353,bckg01t.jpg you can look at that black line around that cog wheel. it doesnt look too good (i am making skin for a game engine) huh? i need to anti-aliase it. but i dont know how. i tryed to blur it, but it doesnt look better. i tryed to delete that line with a magic rubber. it worked, but when you looked at it in a game.. it was bad. when i tryed this method, the black line which needed anti-aliasing just disappeared, and then that cog wheel need to anti-aliasing too. so i cant do without this nothing. and i think, that i will need this technique in the future. so if someone can help, please tell me how to anti-aliase it.

P.S. I have tryed googling, i found only one page, contains some info about anti-aliasing the circles, but if you looked at that image, you know, that i can't use this method.

Thanks in advance for any help

could you set transparency for it?

mr noob wrote: could you set transparency for it?

did you mean edit -> preferences -> transparency ? (i am using adobe photoshop cs3) or did you mean setting in a layer style ?

im not sure, i dont use PS, but could you not set the line to be transparency at a certain percentage, which would make it blend in?

i made this change:

http://ukazto.com/?img=1058557,bckg02t.jpg

is it better?

yeah that looks amazing :)

thanks for your help

no problem :)