HTTP without :

Okay, so i has registering on this site hosting and it’s the only one that works fine to a script i have here.
But…when i try to acces the links, it gives http (without ‘:’ ) and a DNS error.
I know that i can replace it, but the new users of the site may experience it and they’ll be tired of argh i must insert : here.

So what to do?

Ps: This is my HTACCESS file:

RewriteEngine On
RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-d
#RewriteCond %{HTTP_HOST} ^www.(.*) [NC]
#RewriteRule ^ http://%1%{REQUEST_URI} [L,R=301]
RewriteCond %{REQUEST_URI} !.(js|css|gif|jpg|png|ico)$ [NC]
RewriteRule ^(.*)$ index.php [QSA,L]
RewriteRule ^get/([0-9]+).gif$ /click/siggy/$1 [L]
````</t>

No one can help you without a little more information like what are you actually trying to achieve or which script is it?