1.3.7 Hacked -- Need help updating

Hello,
I have a 1.3.7 site that was hacked.
I just downloaded 1.3.8 and did a merge of the 1.3.8 files into my current code.
I downloaded a back up of the SQL database.
I uploaded all the Zen Cart files
I ran the ZC_Install and did the database upgrade until all the versions were 'unchecked' -- complete upgrade, no big issues.
I can log in to the admin, but when I load the site I get a blank page with this in the url: http://www.mysite.com/index.php?main_page=

Any suggestions?
There must be a new file or merged file that is incorrect.

Thanks, baschwar

Hi
Add the following to your site and put the error here and I'm sure someone will lead you in the correct direction if you don't see the problem yourself. It's a handy little bugger!
http://www.zen-cart.com/forum/showthread.php?t=84613

Hi,
Thanks for the debugger info. That helped.
I found where it was hanging up on the Ultimate SEO URLs plugin.
I downloaded the latest version for 1.3.8 and it seems to at least load the site.

However, I now see an error at the bottom of the page that says:

Could Not Connect

Right after this in the source code:

Any hints here?

Baschwar