While this doesn't specifically answer the question you've asked, have you considered simply loading the task by ID via TFS's web interface (1)? I've used TFS since it was in initial betas and the availability of the web interface when they bought TeamPlain was a huge boost in their general accessibility by people other than the core development team (i.e. those who used Visual Studio all the time).
I've found it remarkably effective to create a search provider in my browser of choice so I can simply type the ID in the search box, or in Chrome type "tfs1234". This should save quite a bit of time. For Chrome, simply right click on the address bar and choose "Edit Search Engines..." and for other browsers I wrote a short tutorial a while back that should be very easy to extend to the TFS link.
(1) If you can't find it, I believe it's usually on http://yourtfsserver:8090