editing hyperlinks in threads

[vinod]

I want to change the links posted in threads from

http://mysite.com/forums/redirect-to...ternalsite.com

to

http://externalsite.com

but this has to be done for specific forums only. Where should I make the code change.

I am using vBulletin 3.6.4.

please help

[vinod]

why is it that after such a long time I am not getting replies? Is it that there isn't any solution to this problem?