Here's an idea. Create a demo account so anyone can jump right in and experience the product first hand before having to sign up. Maybe make it so all recent changes get deleted every 24 hours or so to maintain a properly configured account (or even flush out all the user updates after their session expires).

With so many task management / project management apps on the market it's quite difficult to differentiate yourself and prove your value with just a snazzy looking homepage (it is a nice design, but so are the 100+ tools I've looked at).

Take a look at the way rule.fm does their tour (screenshots/videos). Very easy to get to those areas and