issues with 32 bit plugins..

I guess you have a suitable computer and an Audio Interface to use !

Certain 32bit plugins may be bad programmed or made with synthedit etc
and will in some causes not work with bitbridge.
there may be an another tool to use:

you could try: Jbridge 

Remember to put the 32 bit vst plugin that you have a problem with
in a separate folder, that Sonar is not scanning ( important )

when using Jbridge, it will take that file and rewrite the 32bit file into an " emulated 64bit vst file " as i understand it!

when you start Jbridge you will forst open the path to the 32bit file for Jbridge to " read "
then Jbridge will ask for the destination folder for your " new 64bit " created file
you can select your ordinary 64bit vst folder for that or in beforehand create a new folder
called like : Bitbridged, and add that to the vst scan in sonar.
Bitbridge will then put the new " emulated 64bit vst" in your selected folder.

then you start Sonar, and it scan the folder, if you have added it
and it should be able to run your vst as usual, but in " 64 bit mode "

then you start Jbridge, how to use it: here 
it may solve your problem, if you are lucky ;-)

here is a youtube video: http://www.youtube.com/watch?v=H6qaPwCApH4 

There may be others here that have a better solution than me, but its worth trying out.