ansaurus

Thank you! Do you happen to have any suggestion to the problems described in the problem summary? I'm uncertain of how to remedy these problems.

Upvoted as you're taking us closer to the solution. But we're not there yet I'm afraid.

See my edited answer above with the response to your question edit.

Thank you again for trying to help me! And of course you do! Still, those changes messed up the tables for the theme: http://imgur.com/chyJa.png I would really like them to look as they did if that is possible. I'll look more at this tomorrow. I'd like to be able to have the two removed border styles for normal tables (not the Geshi generated table). There must be a way.. hm.. Anwyay, thanks SO much for your help so far! It's greatly appreciated!

So they did. Hadn't spotted that. See my edited answer again.

Works perfectly! Thank you!