Xavier, 

1st, let me say it's a GREAT, GREAT PRODUCT !
The best one I found to date.
There is some way to reward your work ? If so, tell me.

Now, two "issues":

1) if you have more than 10000 links or something 
similar, program (win32 version) stops telling you to 
use the #L parameter. I couldn't find this parameter 
value in the GUI forms, so maybe you should include it 
in the next version (win32, obviously).

2) if you have a LARGE NTFS drive with thousands of 
files and directories [where the web sites mirrored 
lie] the left window tries to load them all to display 
the directory tree. This is very time-consuming ! An 
option to enable/disable this behaviour (which is very 
nice indeed if you only have a few directories to 
display) would be a real time-saver.

I'll post here other comments, eventually.

Thanks,

Andrea Guarino