3 domains same database, not working

[oberheimer]

I have 3 domains and 1 database. It used to work but i have uploaded some new files...
when i go to each domain it looks ok on the index.php file but when i click on any link or go to the admin it's all pointed to the 1 domain

for example domainnew.com/admin
is directed to domainold.com/admin

I guess it could be cache or something. All config files are right so

[oberheimer]

I have a htaccess redirect to www.
might be something wrong there i need to look

[oberheimer]

fixed it now i did'nt have write permition to the config file so lol