CRE Loaded Store Down! Need Help RIGHT AWAY

I current run CRE Loaded, version 6.2. Thursday, I had my server management team update php to 5.3 so I could install my new Dev store that required it. Upon doing this, it broke my CRE Loaded Store because it doesn't support php 5.3. I had the server guys revert back to the old version of php but the site is still messed up. The two issues are: 1. The admin page for CRE loaded seems to authenticate, but does not bring me into the actual admin side.. it just re-loads the same login screen. The page: /catalog/[login to view URL] Loads OK But, all of the links to the categories all link back to: /catalog/[login to view URL] If you click on a product under "new products for september" /catalog/[login to view URL] Instead of the actual product page. I am only interested in developers that can work on the site RIGHT NOW.. not in a few days. I'm sure its probably a configuration issues on the server. I cannot wait any longer to resolve the issue.. The store is usually a live store and people cannot order from it due to the downtime..