Page Editor Glitches

[AlexC]

I mentioned this briefly in another thread, but another issue there arose, so I'm reposting it.

I'm having issues with my page editor creating massive spaces, line breaks ans shoving things like tables and forms far down the page. I've taken some screenshots;

This is of a page right now;




This is what it looks like when I'm editing it;




And this is the preview the editor provides;



I have some live examples;

http://ratties.x10.mx/contact.php
http://ratties.x10.mx/sites.php
http://ratties.x10.mx/index.php
http://ratties.x10.mx/contests.php

I can throw a table up if anyone would like to see - the pages that look half decent have been dramatically altered through the editor to get them as normal looking as possible.