Beginners question... (I think)

Unfortunately I'm not well informed about php and everything that comes with it. My site is created by someone who is totally out of the picture at ther moment and I have a problem On my site it was possible to create "aktueeltjes" (newsflashes) and add them on the "aktueeltjes" part of my site I logged in as user or administrator (depended on what I planned to do). I filled in the formula, ...my password... and a new 'aktueeltje' was on line. A few moths I haven't used it. (edited or added someting) Yesterday I did everything as usual Now I can still log in... but whenI have edited someting or added a newsflash... I fill in my password ...send.... and it refuses to do anything Instead of that I get a warning: Warning: fopen(news.txt) [function.fopen]: failed to create stream: Permission denied in /www/htdocs/~~~~~/site/_actueel/admin/ed.php on line 88 Warning: fwrite(): supplied argument is not a valid stream resource in /www/htdocs/~~~~~/site/_actueel/admin/ed.php on line 90 (instead of ~~~~~~ my sitename appeared off course... but to avoid problems with certain individuals :-))) Can anyone give me a hint please? I have no experience at all with this kind of problems You can also mail me if you like: " writetokoyaan(A)hotmail.com Tnxxxxx a lot Koyaan