Well I took the plunge and upgraded the site to MovableType 4 this afternoon. The whole process took about 40 minutes and most of that was trying to unpack the tar.gz file as I was using the AIX commands to extract instead of linux ones! I have a new layout design from my beta tests of MovableType so the design of this website may change drastically over the next couple of days. If you see anything broken then please let me know.
Ok – the problems were with some of the plugins that needed changes made to the template code such as my captcha plugins. As these plugins were not installed in the new installation some of the pages wouldn’t work and I was actually unable to publish documents until I stripped out the scode information (which was actually fairly easy due to the comments placed around the required code).