Bugs and Additions to site

I have a site that has a few bugs that need fixing and some additions made to the site. This is not a CMS but a custom script made of PHP, MYSQL. Bugs Header HEADER DOES NOT GO TO HOMEPAGE FROM ALL PAGES home page Image resize of home page image Text has question marks instead of commas site chages size on different browsers User Page compose message inbox only sent to plugs REGISTRATION ALLOWS USERS TO POST WITHOUT email CONFRIMNATION Forum Search shows postings that are not there then when click back page cannot display after edit a forum posting it disapeares Cant paste image into forum posting find plugs should not show email address Blog Images at top not showing Make Posting go to edit and source disappears Gallery to BLOG as home page Video on some products not playing. forgot password email verification not working. ------------------------------------------------------------------------------ Additions Video search Chat Mass spam postings deleting