Hi,
some people use BrainVoyager (some people will do anything...) but don't like drawing ROI's in it--AFNI is a much better environment for drawing ROI's. I wrote a perl script that creates a BrainVoyager .voi file from an AFNI file pair containing ROI's created with AFNI's 'Draw ROI' plugin.
There are actually 2 scripts and a procedure for what to do, so I didn't post it here. Email me if you're interested.
George