WPG2 Output page blank and kills all website content when enabled

Yes, long title, sorry.

My host just had to move me from one server to another due to issues with the original one. Now I'm having issues with WPG2 again. It used to work just fine, and it was hosted at http://www.gizmokid2005.com/wpg2 and worked great. I uninstalled the plugin and reinstalled it hoping to clear out any bad configs/cache issues that there were and I've gotten nowhere...except now the WPG2 plugin insists my page be hosted at http://www.gizmokid2005.com/wpg2-2 (or 3 now since it's a new install. It was 2 when I tried it after the move). When you try to go directly to the wpg2 page, you get an internal server 500 error, and if you try to go to any other page in wordpress it's just blank. I've checked the PHP Mem limit and it's already 32MB, so I'm doubtful that's the issue.

I'm stuck as to what could be the issue. Gallery is installed at http://gallery.gizmokid2005.com and works just fine. Ideas?

I've installed BTEV and here's the output from my website (at least what's relevant to gallery): http://gizmokid2005.pastebin.com/V2bHdpru (since the post wouldn't process with all this in it)...

(Moving my post from the Wordpress forum to here).