BSM with SSRS(2005) on a different box

Could anybody help provide some information about installing BSM with SSRS 2005 My installation needs to have SSRS running on a different box than the BSM server.

There are 2 issues involved here:

The BSM Server.msi by default looks for Reporting Services 2000. But I need to have the complete installation based on SQL2005. Do i have to install RS2000 and then manually configure it to use SSRS2005

In addition to this, I would prefer to have the Report Server on a different machine. How do you convey this altered configuration to the Server.msi file which looks for a reporting services instance on the same machine. The set up does not proceed without having RS2000 on the same box.