Calls to wpsc_you_save in wpsc_the_product_price_display pass the product id as a parameter, let's the price be calculated for an arbitrary product id passed as a parameter rather than always calculating the price for the current product in the loop.

Removed unnecessary calls to wpsc_you_save whose results where being overwritten by later processing
Merge pull request #1587 from JeffPyeBrook/pr-1552-fix-wpsc-you-save

Fix wpsc_you_save in wpsc_the_product_price_display