Citrix StoreFront 2.0 with APM

We have been trying to get the Citrix native receiver working with this iApp. We are using a single iApp for Storefront 2.0 as well as native receiver access. Storefront 2.0 access is working well through a browser, but when using the receiver after login the error returns "Citrix Receiver could not log you on to the store."

We are using SNAT for each Virtual Server and I'm wondering if the preservation of the client IPs is what is causing our issue. Are there any modifications on the Citrix side that need to be made in order to make this work?