thumbnail appearance

[uchain]

I was just wondering if there is a way to make my thumbnails all render at a specific size and have a border around them, etc?  Without having to make thumbnails out of the pictures myself.  Here is a link to my site:  http://photos.u-chain.org
And I'm trying to make the thumbnails render more like...

http://xtinapix.org/thumbnails.php?album=1938

[Stramm]

The border's done using css. The classic theme already draws a black border around the thumbs. Thumb cropping is a modpack feature.

http://coppermine-gallery.com/forum/index.php/topic,28367.0.html
http://coppermine-gallery.com/forum/index.php/board,86.0.html