Well I have got it working after a bit of investigating round the web.
The trick was to issue an MDX statement and return it to a Dataset which was then used in the report.
So you need a bit of techie knowledge but I think it will achieve what i was after, in terms of a free web reporting capability for TM1 based off MDX.
MDX gives you so much control over the data that its great for reporting.
Hopefully I'll get round to documenting the whole process this week and post on the Applix forum.