AFAIK Jaws is EXTREMELY difficult to be run in a PE.
If you are needing some features for the visually impaired, recently a small Winbuilder based project has been modified to have some of these, NVDA was added to it instead.
Check here:
http://reboot.pro/15080/With reference to your other post that I merged with the present thread (about Audio), the project has audio support (using the drivers from the XP already on the machine) and the solution for non XP installed machines was to add support for a "generic" USB headset.
This may also be of use:
http://reboot.pro/15371/
jaclaz