Ok...figured out what the "problem" is.
You are using mod_rewrite on your webspace.
That means: your apache manipulates the html links above in the adress-strip.
One example:
This is your board login:
www.***.com/component/option,com_login/Itemid,50/
This is my board login:
***.de/index.php?option=com_login&Itemid=41
My link is generated other than yours because i don't use mod_rewrite.
Your way has some advantages: not everybody can see that you use php for your site and use mysql-injections to hack your site.
And this is the thing why my edited files doesn't work on your site...
Are you hosting your site from your homepc or with a webspace-host?