I got this when I tried to install iLife 06 a few weeks ago.
I had to open the package, and uncompress the pax file, and find th eother .mpkg inside of it, and ran it, and it worked fine. But something the size of leopard.... I wouldn't do it unless you have a lot of disk space.
So do you reccomend that I re-download the whole leaked leopard again.. perhaps from a different source. Maybe thats the answer... otherwise, anyone think they could email me thair OSInstall.mpkg ? If thats alll I need...

Or, perhaps I could create 2 partitons on the external, reinstall panther on one, then use that install to put leopard on the second. ( I may need tiger for the install... so perhaps I should go borrow my brothers powerbook w/ tiger....

)