I made a simple [url=http://www.lochnora.nl/assets/imagerotator.zip]imagerotator module[/url] for my work to rotate logo's on any page they want. It lets you create a RotatorPage where you can add logo's (or other images). The actual RotatorPage with the rotating images is invisible in the menu, but you can show the rotating images in an iframe in any other page. See the README file in this module.
Thanks for the pointer Howard! You've helped me out a few times lately which is much appreciated. I'm a graphic designer by trade, I can also do HTML and CSS and incorporate theim int a SilverStripe theme but PHP is still a little outside my scope!!
Things got so heavy I eventually had to trash my test install and DB and start again! Once up and running I loaded DataObjectManager (dev/build/) and them Imagerotator (dev/build/). It was all looking pretty froody until I went to set up the Rotator page...
Any more words of advice -- or should I give up and do this in Flash?!