[imp] virtualhost error for imp

[Callis]

Hi all,

  I have been trying to get virtual hosting to work for my 
new horde and imp after my server crashed but i keep 
getting errors. Below is the error message i get in the 
apache logs. When i point my browser to 
http://ip/horde/imp then am able to log in without any 
problem. Here are my packages and configs. Any help will 
be appreciated.

Thank you.

Fedora core 3.
Horde --3.1.3
Imp: H3 (4.1.3)
httpd: 2.0.53-3.3

<VirtualHost *:80>
  ServerAdmin sam at joe.com
  DocumentRoot /var/www/html/mail/horde
  ServerName mail.joe.com
</VirtualHost>


"File does not exist: /var/www/html/horde/imp/imp, 
referer: http://mail.joe.idngh.com/"

Yes, second "imp" is not a type, but i suspect that is 
where the problem is but dont know how to fix it. Any 
ideas?