Forum URL

[kj_202]

Edit: Changing to explain better

In admin cp - Vbulletin Options - Site Name/ URL / Contact details.

In Forum Url - It says "Note: do not add a trailing slash. ('/')"

When I add my forum url without the "http://"

The pages from certain things like, top posters makes the url double up and goes to an error page
with the url of the forum and then /url of forum AGAIN. This happens when clicking threads that have show the latest post from a mod such as Latest post.
*go to thread, click then error page because of forum url doubling up*

If I add to the forum url http:// then the forum url where the part it says DO NOT add
"trailing slash /". All the forum then works fine.

How can I make it so I just add my forum url WITHOUT "http://" and make the forum work when clicking links from other mods?