PHP hosting-site: new functions & API building & bugfixing

We have a simple hosting website. - Someone can do domain check. - Available domains can be selected with our without a hostingpackage - Filling in client detaills - Pay with paypal or ideal via MOLLIE (dutch-based payment provider) Some minor things must be done and the website must be FLAWLESS working. TODO: - Website works now in fireox, must be working correctly in FireFox, Chrome, IE and Safari - Some small technical issues in the domain checker must be fixed (when you select multiple packages/domains) the next button disappears. - some checks must build in the orderform (email, and if everything is filled in) - paypal API connect must be checked - if the server or payment provider / paypal or domain company encounters an error must be logged in an CMS and mailed to us - search queries, orders (not paid/broken) must be logged with IPadress/hostname in a CMS - when a payment is done a copy of the order and payment must be mailed to us - after the payment, a user MUST click the activate button to activate their products, this must be easier without clicking (so immediately when a payment is done) - 404 and other codes must logged in a CMS - Google analytics (javascript must be placed in the pages) - Promocode field with a name, date in, date end, discount (in €) in the CMS and active in the website before paying. - Contact form with checks must be fixed - 3 Pages must be managed in the CMS (wysiwyg editor) - Order overview in CMS - Paid orders overview with customer detaills in CMS - Failed orders overwie in CMS Well this is it I guess. it could be I forgot something minor. Take this in your bidding.