tsgirfriend.net didn't work and then I tried adding a couple of letters, eventually used all 39 letters of the alphabet and the last one (the l) gave me
Your cookie domain is currently
. Change that to
(note the leading dot).
Since you can't access the ACP you'll have to use Fixing incorrect cookie settings
In /cache delete everything except for index.htm and .htaccess.
Clear you browser cookies and browser cache and then try to log in and access the ACP. (no guarantee that will solve the problem but it's worth trying).
In any case, you mentioned using a host tool to install your board. That is not recommended as we don't know if the host has modified anything, nor how it was installed and basically it implies that the host should provide support.
Also, I see
which seems to be a host-installed monitoring script (in your control panel there should be an option to switch that off).
Therefore I suggest (since it's a new board) to delete the board, and install a new one using the files downloaded from phpBB.com.
in trying to be short i wrote girfriend instead of ts
Mick spotted that and gave the corrected advice so applied the correction here.