I'm glad you've come across our website, and are interested in TopCAATs!
We're releasing TopCAATs on Wednesday 1st October, and after this you'll be able to download a fully functional trial version from our website, [http://www.topcaats.com/]
In the meantime, feel free to visit our website - there are some demonstration videos up there, and you can also download the user guide which has screenshots of all the tools.
If you've got any questions then drop us an email, our contact details are on the website