I flashed my HD2 to Miri's v1.2 ROM and found out I didn't have JBlend anymore. Since I could't find any other JVM that could run Opera Mini as good as JBlend (at least visually) I tried to use the package that came with ROM 1.48 and make a CAB. Unfortunately it didn't install. I removed all the files from my CAB and left the registry parts in it and it installed. I did try to apply the registry changes by importing the reg files but there seemed to a problem and all the 3 registry editors I used said "import finished" and nothing was imported. The CAB however does the job.
So for anyone trying to have the JBlend version that came with the HD2 without flashing another ROM, try this:
1. Unzip all the files in the .zip file to \Windows
2. Install the attached CAB (on the device)
To get the shortcut in start menu, create a shortcut called "JBlend.lnk" pointing to "\Windows\JBlend_AMS.exe" and place it in "\Windows\Start Menu\Programs\Tools"
(or wherever you want, only, the nice .png icon won't show if it's not in Tools)
Update (March 31st, 2010)
I replaced the files with the ones from the JBlend version that comes with the HD Mini (Photon). Now there's no problem with screen alignment in 6.5.X ROMs anymore.