Interpsire / Google Feed update

This is a fairly easy project. i use Interspire Shopping card 6. i have had quite a few mods made to the variation section of the shopping cart. now I need some tweaking done. I need to have my Google exporter php updated to include the following: 1) Image pulls the variation image, and not the main image. 2) Pricing/Weight is based on Variation pricing and not the main product pricing/weight 3) Google feed includes my new sql field Google_Dept.