Creating Web Publishing Rules for Exchange 2007 -- One Rule for Each Method Published
When publishing Exchange 2007, you need to run the New Exchange Publishing Rule wizard for each access method separately. You can use the same Web listener for each rule. However, you can only publish one access method at a time you select Exchange Server 2007 as the Exchange version when running the New Exchange Publishing Rule wizard.
This is different from the situation with Exchange 2003 Web access publishing, so I thought you should be aware of this.