So basically been working on this issue for far too long now and nothing I do seems to fix the issue.
Basically if you go to http://www.completeenergy.co.uk and click on the "Get a Quote" button then try to enter details into the form nothing happens. You can not click on the inputs and or select anything within the form. This seems to happen in both IE7 and IE8.
Any ideas as to why this would happen when all other browsers seem to be working fine?