SSRS Formats in T_FORMAT_INFO

Hello all.

I'm starting to think about moving our Gift Certificate and Subscription Renewal formats from InfoMaker to SSRS.  I created one to test, but I'm getting stuck when I add it to T_FORMAT_INFO, specifically on the [D Object] column.  Can I enter a path to the folder on the Report Server where the SSRS object lives?  Do I need the file extension?  Can SSRS formats be added here, or is this just for InfoMaker format?

Thanks!

Nathan