SMIL, FLV and Flash Media Server 5

Hi , I have a flash activity created back in 2006, it's in AS2 and written to stream flv from within a swf.  It uses a SMIL file (not sure what version) to give bandwidth options.  We now have Adobe Media Server 5 and these flvs are not coming through.  RTMP seems to be correct.  Does FMS 5 recognize SMIL or need specific configuration?  Thank you for any thoughts.