need to modify a virtuemart theme to fit with my joomla template + activate url rewriting

hi, i recently bought a virtuemart theme for my virtuemart store. however it doesnt look good because i want the products cells to be bigger and the other elements to look better. so i need someone who can enhance this theme for me and enlarge the product cells and buttons to fit with the french text. im not asking big modifications, i just need the french text to fit in the theme buttons and also to make the thumbnail pictures (size 350x175) to fit in the product frames of my theme. well basically i need the pictures to be as big as on this page: [[login to view URL] ][1] so the theme that needs to be modified is installed here: <[login to view URL]> also, i need to fix the error shown on this page <[login to view URL]> {phatfusionslideshow components/com_virtuemart/shop_image/product/[login to view URL],components/com_virtuemart/shop_image/product/resized/[login to view URL]} basically this is to magnify the picture. but i would like to replace this effect with the light box effect "Rokbox" (component that i installed in my joomla) thanks for bidding