I'm no expert with Pack3d but you may find find that this is inherent in all the versions.
Bigboywooly has all the Pack3d versions on his filefront account, try them out.
I have always had problems using anything other than Version 1. Don't know why.
EDIT - Dumbkoff, so do I -
http://files.filefront.com/P3dAllVer.../fileinfo.html