Virtuemart checkout and totals error

I have a virtuemart site that has 3 errors which I think are minor. Go to [login to view URL] and login in the lower left area using my test login of mikefitz and password of knight. Here are the issues: 1) If you add a product that has additional features, the cost of the additional features gets doubled when you check out. For example click on SPEAKERS>X-Series>x-ls encore Monitor Loudspeaker. In FINISHES add "Cherry Satin (+$50.00)" then click ADD TO CART, then CHECKOUT. The price is correct until you come to the COMPLETE ORDER screen, then instead of adding $50.00, it added $100.00. Use the AV123 credit option to check out. 2) After the order is complete and you see the screen to review your order, sales tax is displayed, but not included in the total. Same if you were looking at the admin order review. 3) If you go to SYSTEM BUILDER>START BUILDING you see a floating panel on the left. If you add a finish to a product in that page, the prices are updated, but if you use the CONTINUE button in the floating panel the price for the upgrade is removed. This is only in IE. It is ok in Firefox and I am told it is a minor JS error. ## Deliverables 1) Complete and fully-functional working program(s) in executable form as well as complete source code of all work done. 2) Deliverables must be in ready-to-run condition, as follows (depending on the nature of the deliverables): a) For web sites or other server-side deliverables intended to only ever exist in one place in the Buyer's environment--Deliverables must be installed by the Seller in ready-to-run condition in the Buyer's environment. b) For all others including desktop software or software the buyer intends to distribute: A software installation package that will install the software in ready-to-run condition on the platform(s) specified in this bid request. 3) All deliverables will be considered "work made for hire" under U.S. Copyright law. Buyer will receive exclusive and complete copyrights to all work purchased. (No GPL, GNU, 3rd party components, etc. unless all copyright ramifications are explained AND AGREED TO by the buyer on the site per the coder's Seller Legal Agreement). ## Platform IE6+ and Firefox