variables in old URL
 

After switching from another application to vBulletin, I have a problem with old URL´s in Google.
It has still indexed URLs like this:
Code:
http://www.seniorportal.sk/index.php...rowse&genre=48
On visiting this URL I would lilke my vBulletin to say in http status code "301 Moved permanently" to an index:
Code:
http://www.seniorportal.sk
or to say 404 Page doesnt exists.

How to do it?