The Music Production Tool Kit box should only have the one TL disc. (mine does too..)
There is a white instruction card inside the box that tells you how to install and a yellow card that used to authorize and get the ilok licenses sent to your ilok.com account, no discs needed..
Depending on what version of Pro Tools your using you should download and install the appropriate version of mptk, it says on the card go to this link for the installer download if you don't have a Pro Tools disc for the version your using:
www.digidesign.com/support/mptk
I found installer downloads for the rest of the plug-ins here:
http://www.digidesign.com/index.cfm?...id=115&mkt=all
remember, the only included TL plug-in is TL Space Native and its impulse response library.
hope that helps.