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Yep - get v1.26 from the Brandycoke website here:
http://www.brandycoke.com/home/modules/cryptica/showfile.php?file_id=31
Don't get v1.5 which is for the older XOOPS 2.2.x branch. v1.26 is for the former XOOPS 2.0/x branch and works well.
It is fully functional on the current XOOPS 2.3.x branch although you will see a red warning in the admin side saying that it might not function properly. This is down to version-checking code not knowing about XOOPS 2.3.3 - you can edit a file (can't remember which one off-hand but will check if you want!) to remove the error if it bothers you.
I use Liaise v1.26 on my site (see sig) and have not issues at all