We have pound running in front of Tomcat and Lighttpd and it is working very 
well.  The re-writes of the redirects have been broken in a recent version.

Having looked at the code I think it is due to the ports we are running on and 
so I "fixed" pound for our use by inserting

return 1;

at line 628 in svn.c

This is not a perfect fix, but it seems like the additional checks were 
failing to correctly identify the things that needed to be re-written.  I 
felt that the cost of the extra checks might just outweigh the "extra" 
rewrites that might happen.

I know this is a weak hack, but it makes things work for us.

Thanks for the great app,

Craig