Attributes modification for OScommerce store

I need the open type attributes modification installed on my oscommerce store with some changes made to the way it outputs the price. Currently I have Actual price attributes installed which shows the price in the attribute dropdown. However, some of my products need multiple attributes so I need the option type installed & have the final price change when each attribute is applied. [login to view URL],160/category,all/search,option+type+attributes