The information regarding home use is actually in the license agreement documentation. If you don't know where this is, begin an installation...you have to click "accept" on the license agreement to continue, but this time, copy paste it out to a document and then search it for the text.
You would use your standalone license number for the home installation as well, and register it as you did the copy at work. Autodesk does track this, so if you loaded it on 3 machines, you'd likely get a call. It's kind of a monitored honor system.
For network licenses, if I recall correctly, you would load the software as a standalone version with the same serial number and license key. Just like the standalone copy, Autodesk monitors the standalone installs. So if you had 10 seats attached to 1 license, you would have 10 standalone installs available for home use.
Can any moderators out there confirm this?