OS Commerce Wholesale Account Checkout Fix

Bug Fix on OS Commerce Shopping Cart A couple of simple fixes I hope: Problem A: The website has two types of customer account: 1. retail 2. wholesale The retail customer account works as expected. The wholesale customer account breaks after clicking the checkout. It cannot resolve http://websitename/[login to view URL] This is what it needs to do: After checkout go to > http://websitename/[login to view URL] then to > http://websitename/[login to view URL] (however there should be no payment options on this page for wholesale customer) then to > http://websitename/[login to view URL] (however there should be a different message under payment information. It should instead say "An invoice will now be prepared and a copy forwarded to your registered email address. The invoice will include VAT and delivery charges where applicable. If you have any questions regarding your order, please contact " Problem B: Can you please set up the delivery charges as follows: If Retail customer and order is <= £35 , and delivery address is in UK then charge £1.50 else order is >£35 and delvery address is in UK then free of charge If delivery address is in europe then charge £10