ok m8 find another pic u want to use either copy it to ur own site use the url or if u do not have a site get the url =address
ie: www.picsite.com/mypic.jpg
go to user cp edit profile then signature
find the part with something like this in
[ img ]www.xxxxx.xxx/xxxx.xxx[ /img ] delete the pat with xxxxx in
xxx = the address of the bike pic replace it with
www.picsite.com/mypic.jpg so u now have
[ img]www.picsite.com/mypic.jpg[/img ]
click on submit modifications go to a post of urs and the new pic should be there