We have an Alpha release that has a prototype fix for the 10.7.3 rotation issue. You are welcome to try it but remember it's an Alpha: it has gone through very limited testing so you are going to install and use it at your own risk!
If you previously had a working rotated DisplayLink screen you can just install the new driver and the rotated screen should come back to life.
If you do try it, please post your feedback in the new 1.8 forum:
http://www.displaylink.org/forum/forumdisplay.php?f=45
Best regards,
Carlo