Is Adobe skipping ImageReady 4.0 that the version number between from 3.0 to 7.0. Since ImageReady 7.0 is a newer version of this program to support Windows XP. The version number was actually being skipped and just looks like an "unlucky".
ImageReady 7.0 is a newer version of the program to support Windows XP, so the version number was skipped and appears to be "unlucky".