way, pepol, so i'm not only 1 who spends weekends like other dais, tinkerin' with PS?
well, jokes aside, thanks to all for the replies... (I hope I'm not boring you with "everyday updates"?

)
That add shine under belly is not a prob to add:
http://img193.imageshack.us/img193/9369/ki84wip10.jpg
But I think I screwd my rivets rows...

They look like <....> ...like not rivets!
How do you do 'em round?
Besides, if I get it right, rivets should look "light" on dark surfaces & "dark" on NMF/light painted surfaces? Right? The same stands for panel lines?