OS Commerce verify

I have a client who is moving to one of my servers. He has OS Commerce on his site. His domain is [login to view URL] I am not sure what version he is using, but he would like me to find a person to verify his script. He wants to make sure everything is working fine with my server setup. We have verified 90% of it. I am just need someone to look at the back end. I can handle all the server admin stuff. I am just not a programmer. I am nto sure how OSC works. So I need a price for you to look through the script to verify everything is working. Just tell what is need if something is wrong. Then we can go from there.