I did, but it says "Currently this single sign-in feature is disabled for the domain xxx Return to taskforceapp.com. For information on how a domain administrator can enable this feature, see these instructions."
I clicked on the link to return and it says can't login. And the directions don't make much sense.
Strange, are you using the paid version of Google Apps? And are you the admin for the domain? Shoot me an email at courtland@taskforceapp.com, I'll give you a hand.
It sounds like whomever controls your your Google Apps Mail account has disabled 3rd party apps - once that is enabled you will be able to dl Taskforce. If you like I'm happy to explain the benefits to them, you can email me on nic@taskforceapp - thx!