From the very beginning of the longest thread in this forum:
Current InTesting ISXVG patch notes. If you're interested in testing, you'll need to come to #isxvg on irc.lavishsoft.com and be non-idle when I have a version available. (Or, at least have it so that your irc client beeps when I say your name.)
I would add to that 'if you turn on auto-accept dcc sends from Amadeus' (including .dlls) you'll have a better chance of getting a version of isxvg to test.'
I typically send to everyone in the channel when I have a new one ready. They patch a lot, which always breaks isxvg, so they're not everyday ..but fairly regular.