need some advice on redirection in apache

["H.S." <hs.samix@gmail.com>]

Hello,

Just wondering, what options do I have to do redirection from the older 
web site http://mydomain.net:NNNN (apache listening on port NNNN) to the 
new web site http://mydomina.net.

In other words, a webserver that has been running on port NNNN for quite 
a few months is to be shifted to port 80. The older web site address 
should be redirected to this new one.

I am looking at the rewrite module in apache. But would sure love to 
hear what others have to suggest. This is on a Debian Sid with apache 
1.3.34-4.

thanks,
->HS