Prestashop help - upgrading to 1.5

I tried to upgrade to prestashop version 1.5 & now have bad subdomain SQL query, and cannot access the site. I need this looking at and fixing asap please, plus while you're at it, part of the job is to also help transition the store into the new update - updating files etc so module all work and old functionality is maintained. Eg, we have a keymanager for distributing serial keys, which will need to be moved into the updated shop. Please feel free to contact me with any questions regarding the project. I need it done asap - preferably within 24 hours if possible from bidding, so please dont bid if you can't achieve this. Thanks.