I am having a few problems that include the Itemid problem with AVR. The first problem is when you link from the module on the frontpage to the detail view. There isn't an Itemid in this case and the AVR popup won't work. This is with SEF off.
The second problem is when sh404sef is on with the Biblestudy plug-in. The /components/com_biblestudy/helpers/listing.php always returns 1 because the getlink function doesn't see an Itemid. This puts the studydetail on the front page. If I change line 426 from 1 to 7 which is my studieslist menu id and it works. The fake Itemid needs to match the Itemid for the studieslist menu.
I think the big problem with the Itemid is that the studydetails is a link off of studieslist. In this case there isn't an Itemid because it isn't directly connected to a menu. I am not sure how to solve this, but if you could fake the same Itemid for the menu studieslist for the studydetail it would help solve the problem. This seems like the same thing as using Alias menu item type to create a link to another menu, this keeps all the parameters of the target menu.
I hope this helps.
Jesus Loves You.
Nick
