A few Magento Fixes needed

I have a magento website that is pretty much done and ready to go live. However I have a few problems which no matter how much time I put into them I cant seem to figure them out. I need the below fixed. - My product "Options" box is too large and need to be re sized. - [login to view URL] problem needs fixed (After you submit your order it goes to /checkout/onepage/success/ that shows a bunch of weird symbols and doesn't make it back to the order success screen. The order goes into the system just fine and makes it to [login to view URL], however this error needs to be fixed) - Email address that sends Order confirmations needs to be changed. For some weird reason all my order emails that go to customers are coming from my web hosting account name instead of the customer service email I specify. - I checked my error_log and found this: PHP Warning: PHP Startup: Unable to load dynamic library '/usr/lib64/php/modules/[login to view URL]' so I would like this fixed. - Product category name and price need to be centered up in category view. Think that is about it,