I now have Cubase Studio 5 (64bit) loaded on my 64 bit Vista.  I loaded the 64 bit Studio Manager, but there only appears to be a 32 bit Rack Editor (other than the VST version, which I don’t want to use since it limits you to stereo outs for the mLan).

Does a 64 bit version of the regular Rack Editor exist?  If I load the 32bit version, it does not show up when I launch Studio Manager from within Cubase.

Thanks.

Correct. That is the current situation.

Driver Schedule as of Jan 18, 2010

Studio Manager 64bit - 2.3.1 Windows 7 / Vista
・Use this version with the 64bit OS and you use Cubase 5 64bit as a host application.
・This version can run without Cubase 5 64bit as a 32bit application.
・When you boot this version inside Cubase 5 64bit, you can use only editors supporting 64bit.
・The list of editors supporting 64bit. （as of Dec.29, 2009）
DM2000V2, O2R96V2, DM1000V2, O1V96V2, SPX2000

Thanks.
I went and loaded the 32 bit Cubase, all is well.  Do you think they will come out with a 64bit version of that editor?