Translation of login or register button

I want to translate the "LOGIN OR REGISTER" but I face a problem as I cannot find how can I translate the word "OR".
The words "LOGIN" and "REGISTER" I managed to find them.. where is the "OR"?

http://www.pantikidis.gr/carpnew

Another question.. Can I have the virtuemart registration form instead of the joomla registration form?

Thanks

Hi,

Add translation for TPL_GK_LANG_OR
and
You have to edit:
templates\gk_storebox\layouts\blocks\tools\login.php
there in line 16 you have to replace default registration link with VM registration url

Thanks for your answer, but the TPL_GK_LANG_OR don't work..
I think that I made correctly but nothing happend.

So just replace this phrase with another inside file which I mentioned before. Exactly in this phrase.