4 easy bugs needing fixed in oscommerce

I'm looking for a freelancer who can fix these 4 bugs in my oscommerce store. I will pay $30, no more, to fix these bugs. The $30 will be paid after the work is done, no escrows before hand. 1. add a line of code to a php file that updates products so the product date last modified entry in the database is updated 2. private messages do not open when clicked on. they opened ok before a recent page style change 3. login to store via jquery dialog box shuts the browser tab down or empties the browser tab and remove or update qty hangs internet explorer after first click 4. Internet explorer issue: our 100% width header is only 50% width in internet explorer, a div is causing a conflict (it looks fine in firefox and chrome)