html :

<BODY>
<iframe src="storage.php"></iframe>
<form action="storage.php" method="POST">
Type your name: 
<input type="text" name="nick" value="Nick" size="20">
<br>Type your comment: 
<input type="text" name="message" value="<comment>" size="20">
<br>
<input type="submit" value="Submit">
</form> 
</BODY>
</HTML>

Php(storage.php) :

<html>
<body>

<?php echo $_POST["nick"]; ?>:<?php echo $_POST["message"]; ?>

</body>
</html>

Problem :
When i tested it i clicked the 'submit' button, and got an error :
Error 405
Method Not Allowed
link : http://24.50.158.18:8500/chat.html
And when i just open the page, it asks for me to download the storage.php, which i don't want it to do.
Help is appreciated, Foso :)
edit : I should also add, this is a 'guestbook' feature I want to add to my website, and since I like to do things for myself, I am trying to make my own.
This is my first post, so i would also like to congratulate Aprelium for such a nifty service(Abyss), i can run my server from a floppy! thats awsome.