78096 PPC script needs fixing

My site is [login to view URL] I purchased a script from [login to view URL] a while back and he did a number of custom modifications for me in the beginning and then kind of left me hanging. My hosting company has told me that it's has problems that are causing real heavy loads on the server and they (Jomo) can't figure it out. I also have a number of other features I'd like to add to it and when that job is completed I have a few projects I need someone to take on from one of my other sites - www.AmazingPlans.com. It's a house plans website. Thanks, Joe Mehm