These are the two files in Spanish:
http://www.onlinefilefolder.com/index.php?action=getshare&type=0&user_num=42271&share_id=126800&hash=d87deca7220ddb5ec2d84760d632caad

Please, download them today as the link will expire within 24 hours.

I'm still trying to find the problem but I can't see ...

Well, I did just what you suggested but I don't know what I done wrong that I have now at the front page of the administration suite the following error:

Warning: Cannot modify header information - headers already sent by (output started at /home/content/html/serendipity/lang/UTF-8/serendipity_lang ...

I will go ahead and do it now. I'll let you know once is ready.

Thanks again for your prompt reply

Hi there.

I'm working with an Spanish version of Serendipity. I installed the registration form and it is working wonderfully. However, once I registered myself (in order to test it) and was forwarded it to the next screen (where it says that you will receive an email to confirm) the language is ...