I'm having problems too.
Version 9.0.0.9 would seem to work, but then the download would get stuck at a different spot everytime I tried. It got stuck at 78%, then 80% the next time, and then the 3rd time it got up to 90.1% and got stuck. Tried another video and it got stuck around 45%.
I just updated to version 9.0.1.2 and I get the same message posted above about needing to update IE flash player. I updated flash to the lastest version and I still get the message every time I open
GetFLV. So I ignored the message and tried to download, but now there is nothing showing up at all in the bottom box that lists the videos to download.
Everything was done on HuIu.