Hosting WCF Service on IIS

I am new to WCF and windows mobile development. I am trying to create an occasionally connected application that utilizes the MSFT sync framework and this requires the use of a WCF service.

I have a visual studio project containing my smart device project, a WCF Service Library project, and a WCF Service website project.

The service is hosted fine on my local machine not using IIS and I can access it at http://localhost:55149/ElectricReadingServiceSite/ElectricReading.svc

However when I add it to IIS it gives me an http 404 resource cannot be found error. I cannot figure out why it thinks the resource is not there.

Here is my web.config:

<?xml version="1.0"?><configuration><system.serviceModel><services><service name="MiddleTierServiceLibrary.ElectricReadingCacheSyncService"               behaviorConfiguration="MiddleTierServiceLibrary.ElectricReadingCacheSyncServiceBehavior"><endpoint             address=""            binding="basicHttpBinding"            contract="MiddleTierServiceLibrary.IElectricReadingCacheSyncContract"><identity><dns value="10.104.238.123"/></identity></endpoint><endpoint address="mex" binding="mexHttpBinding" contract="IMetadataExchange"/></service></services><behaviors><serviceBehaviors><behavior name="MiddleTierServiceLibrary.ElectricReadingCacheSyncServiceBehavior"><serviceMetadata httpGetEnabled="True"/><serviceDebug includeExceptionDetailInFaults="False" /></behavior></serviceBehaviors></behaviors></system.serviceModel></configuration>

My ElectricReading.svc looks like this:

<%@ ServiceHost Language="C#" Debug="true"        Service="MiddleTierServiceLibrary.ElectricReadingCacheSyncService" %>

Any help is greatly appreciated!

EDIT: Are there any tools or steps I can take to get a better idea of what is going wrong? The 404 error does very little to help me.