0.33 now has these parameters. The imageSize is now working properly. It also pulls the information from disk and gets the file size in GiB.
Arg… was in a rush… nevermind the PHP notices, a minor php.ini modification fixes those.
However, there is a bug in that FOG does not display the available snapins unless you “search snapins” and type a * in the field (to show all snapins) or start typing the name of a snapin.