wwwoffle-mv and alias

Hi,

I want to use wwwoffle's alias function to automatically use mirrors for 
certain sites and merge the files already in the cache for main and 
mirror site.

I set up for example 'http://foo/url/ = http://bar/mirror/site1/url/'. 
This appears to be working.  Now I want to move the files from the foo 
folder to the bar folder to merge the data in the cache.  In the 
wwwoffle directory I issue the command 'wwwoffle-mv http/foo/ 
http://bar/mirror/foo/url/'[1].

Problem number 1 is that apparently wwwoffle-mv will completely 
overwrite what's already in the bar folder.  The workaround for this bug 
of course is trivial.  Number 2 is trickier in that the additional 
'mirror/foo/' portion is not picked.  What can I do?

Best

Rolf


Footnotes:
[1] There is a bug in the man page.  The command given is 'wwwoffle-mv
     http/foo http/bar' where it should be 'wwwoffle-mv http/foo
     http:/bar/'.