Firstly - I have to say that I really like this module. It's simple and neat and works well on most browsers.

My problem is with IE6 & 7.

The problem shows itself initially because the site fails to load in IE6 & 7 with this module enabled. An error message is displayed a few seconds in and IE6 & 7 fails to load any further.

I narrowed this down the the miniads module (yes - I am using the latest 1.4.2 RC2)
and I believe that it is the JavaScript that is causing the load failure - I have the wz tooltips option selected and auto load JavaScript - if I change this to manual the page will load. I think this is an IE problem.

Secondly, in IE6 & 7, when I disable the wz tooltips and therefore the associated JavaScript and the page does load, the mini ads are displayed vertically down the page instead of horizontally next to each other.

I imagine that there could be an easy enough fix? It seems from my point of view (but I stress that I am no expert) that there may be an issue with the template that I am using?

Any help or feedback would be much appreciated.

Please test it with the default template. This site, on the demo page uses the same module but as you see it works on IE7 (not tested with IE6 - too old). There's no connection between the javascript and the display order. Make a test with the default Joomla template and see if this a template issue.