Value input bug

I've installed FCKeditor 1.2.4 on both my localhost and
my webserver. It works great on my localhost, but
shows strange bugs on my webserver. Everything is
installed identical.

On my webserver I cannot specify a fixed value for the
editor. In other words, if I state "$oFCKeditor->Value
= 'test' ;", the editor will remain empty.

I also had to change my 'save' script, since the online
editor doesn't appear to send any content under it's
given name, when the form is submitted. To solve that
problem I used:
foreach($HTTP_POST_VARS as $sForm => $value) {
$log_inhoud = strtolower(addslashes
($HTTP_POST_VARS[$sForm]."'"));

Could anyone help me with the first problem? There
must be a way to fill the editor with a variable ...

Also when I use the enter button, on my localhost it places a <p> tag, but on my webserver a <div> tag. How is this possible?