I don't remember which thread it was in but I do recall seeing it stated in another thread that if you purchased it after a certain date (which already passed) that you would get the upgrade for free.
If you use any other programs that are a part of Object Desktop besides Windowblinds I would consider buying an Object Desktop subscription. Not only is it a good deal already but if you buy the Object Desktop Ultimate version right now then you will get two years for the price of one. 
check out this thread HERE
If you don’t have Object Desktop, you can get it here: www.objectdesktop.com.
On December 2, 2009, Object Desktop and Object Desktop Ultimate will be merged into Object Desktop. Users with Object Desktop Ultimate will get a full year added to their account (so now is the ideal time to pick up Object Desktop Ultimate).
