problem with displaying my forum

I have a big problem with my Forum
I have edited this file: "language_file/language_file_inc.asp". I translated all it in Italian because my website is in Italian. When i uploaded all files of Forum on the server I founded displaying problems in these pages:

http://www.nighthawk99.com/forum7_0/forum_posts.asp?TID=1&PN=1

http://www.nighthawk99.com/forum7_0/post_message_form.asp?mode=new&FID=2

and in all other pages where you can enter a new message. It's very strange because if I upload the file "language_file/language_file_inc.asp" in english (not in italian) i don't find that problem and those pages upon are displaying correctly.
The problem don't allow me to format the text message as you can see.

Please tell me why there is this problem and how i could resolve it!

Thank you.

No, it's not the problem... I want to know because if i use "language_files/language_file_inc.asp" in english my forum work, but if i use that file translated in italian it doesn't work.

Yeah they look fine to me to