ZC 1.2.7 $GREETINGS in gv html e-mail

Hi, going crazy here...
I'm working on heavily modified 1.2.7 (maybe on February there will be the big jump to 1.3.6...)
I had issues in gv mails 'cause redeem link not working. After digging everywhere I found the big trouble being the fact that there are 2 domains pointing on the same space and one works, the other not (let's say that session->snapshot(); wasn't working for 1 domain extension, well of course not so simple).

During my digging I modified admin/includes/configure.php (to reflect the correct domain) and admin/includes/languages/italian.php

Now the link in the e-mail is correct, but I have $GREETINGS printed, nothing for first name last name, and then after (!) the amount of the gv I have $GV_AMOUNT.

All the rest is correct.

Of course I must have done something, but I cannot find what. During my 'digging' I checked a lot of files, but if I look at files time on server, only the 2 said are modified...

Every file involved (gv-mail.php, lang def about gv_mail, email template for gv) seem to be ok.

Where may I look at to understand what's going wrong?

Thanks

Well everything is working. Dunno why but it seems that in certain conditions if I send a gv by e-mail just after having modified the def file, some variables are not valued in the e-mail. It's enough to reload the page and everythig goes ok. I thought that those values were taken on the page where there's the send mail code, but maybe not.