In the News section of the Imgburn website, 3rd one down titled FirmwareHQ.com Goes Live advertises "ImgBurn now uses the search engine on FirmwareHQ.com rather than the (until recently) defunct one on RPC1.org when you use the 'Tools' -> 'Drive' -> 'Check For Firmware Updates...' feature."
I have just installed the latest version and when I do the Tools ->Drive.... steps my 'Drive' is greyed out.
copy of my Log:
14:57:47 ImgBurn Version 2.4.4.0 started!
14:57:47 Microsoft Windows XP Home Edition (5.1, Build 2600 : Service Pack 3)
14:57:47 Total Physical Memory: 3,145,196 KB - Available: 2,480,708 KB
14:57:47 Initialising SPTI...
14:57:47 Searching for SCSI / ATAPI devices...
14:57:47 Found 1 DVD