Cubecart Errors

I run a cubecart website that has been growing in size over the last few years, whilst I have been adding mods to this site, small errors have occured and these need fixing, they include: 1. When adding an item with a price addition, ie: by selecting a product with a price increase ie different size, the correct price does not show in the shopping basket on the right hand side of the page, it just shows the initial price of the product, however, when you go to checkout the correct price is shown. 2. When adding a new product and uploading a new image it is not displaying this image in the add new product page, this could be due to a server problem and we had to re-upload the site. 3. When I print a packing slip, it lists all the customers order quantity per product as 1 even though they have ordered more products [login to view URL] the packing slip I have added thumbnail images of the products they have ordered, for some reason some product thumbnails are too large on the packing slip at over 500 pixels which stretches the sheet, I want a fix for this to ensure all thumbnail images on the packing slip remain small. I need someone who is 100% literate in cubecart and php and mysql to fix these small errors and take on extra work from me. When the fixes are made I want you to tell me what the problem was, how you fixed the error and supply me with a before and after document showing these changes. I only want people who have received feedback working on cubecart sites to apply for this project if you have no feedback showing you have worked on cubecart please do not apply. Once this work is complete I want to integrate a paypal postage feature allowing me to quickly and easily print postage from within my cubecart admin, do not price for this now, this will be future work. Thank you.