Fedex Web Service implementation

I currently have a website running on Chicagowebs.com.? It is using the old fedex api module.? This module does work, however? I have now found out that if I try to move over to another webhost I must? change this module to new fedex web services module. ? I was in the process of moving over and that is when we found this out.? I currently have my web files loaded on new host as a test site, but when you try to place an order I receive an error.? So basically I am looking for someone that knows FEDEX related modules.? If you do not please do not respond.