Creloaded Order Total calculations

Hi, My friend "hcvti" has already posted a project for this same issue, but I also need to have the same work done on my website ([login to view URL]) The issue is to fix a problem on the back end of CRE / OSC online website. Problem occurs when editing an existing order, if a product is deleted, quantities changed or refunded from an order the total adds the TAX figure again to the new(Edited)order total, so the figures don't add up correctly, (adds TAX twice) Original Order = Order Total = Sub total + shipping + TAX = Total. Edited Order = Sub total + shipping + TAX = Total + TAX. This is supposed to be a common problem with CRE Loaded. I require the info to Fix this problem, If it works I will then pay you immediately and will also have other work available. I built the site myself using Creloaded and some mods, but there are still a few bugs and additions that I would be interested in resolving. So if anyone is firstly willing to help fix this issue where Tax appears to be added twice to edited orders, I would appreciate it.