[Help] Website problem

http://img517.imageshack.us/img517/479/wtfsza1.jpg

EN: why its showing that ? i don't do anything i just enter the website and ...

please download the file and say what it reads.
You probably host it on a site which doesn't support .PHP so it thinks it's a downloadable file.
Try to find if your webserver supports PHP and if it includes ALL the PHP options used in your file...