Jay,
Thanks for your advice - by moving the files into the locations you described, I'm able to view them in ArcCatalog and add to an MXD.
When I tried to copy and paste the .rs files using ArcCatalog, it would not allow me to paste, so I used Windows Explorer. Is this a reason for this or is there a property setting in ArcCatalog that needs to be changed?
Also, what is the difference between streets.rs and streets4.rs?
Regards,
Scott Lew