Why not recreate it yourself? The x64 to x86 SVFs take a few hours on a i5 1st gen with 8GB ram, don't know if it's normal, I use -compressratio 49 -blocksize 32.
I am always looking for a more convenient layout, will look at it later, first i have to do the most important and timerobbing job, creating all patches
First i have to patch and get rid of all the x64 iso's on my system I am almost done with x64. But all IP iso's are done = MSDN = TBD (only just in 24 languages), you only have to rename to msdn filenames.