I just tried Synchrorep on Ubuntu Lucid, and it works fine. After installing synchrorep a right mouseclick function is added when hovering over a folder. If you mount Pogoplug using the desktop application, you can then open to the usb drive -> right click to synchronize -> and a dialogue box opens asking with which folder, default settings sync, and made-up name for group which is what they call a sync process. In the future if pogoplug is mounted, you can go to applications ->system tools -> synchronize a group select the group you created and sync.

Using the other tools I tried, I was not able to locate, and therefore select the pogoplug drive using the browse to configure a sync. It does not appear under /media. The synchrorep method of clicking on the folder in nautilus circumvents this problem. I was able to use synchrorep to sync with an xp machine in the past, so maybe this solves some of your problems.

Try the script at this post...

http://www.pogoplugged.com/forum/thread/11615/Pogoplug-Compatibility-List-Bac...