Funny pictures, plural. With text accompanying many of them. Kind of like reddit, 4chan, digg, et al. But of course none of us would ever peek at those site while at work. Not something to get worked up over by any means. Someone who isn't me had a read over the files and had this to say.
Email addresses. They're common, but these aren't just any emails. We can now attach these address to a specific organization and try to target them to get the information we want; if there is any in their inboxes. Think OpSec.
Bids and purchase orders. This takes time, as you actually have to read them, but you can find prices and bidding tactics of ManTech and maybe undermine them next time around. OR as entrepreneurs you can read them and learn how to acquire government contracts.
Tons of employee IDs in there used to login and out of services. You can guess why these are important.
They were in negotiations ~2005 with NATO to undertake maintenance of SatCom Afghanistan. Do some research, find out if they have the contract, new vector to exploit; very nice pay off. From the same document we learn a valuable piece of information about how NATO accepts bids from clients:
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This will be a competitive procurement. We will be up against large American and European firms. We were informed that NATO puts a requirement for a Bid Bond in their RFPs to eliminate some of the small firms from the newer NATO countries that are part of the former Soviet Union. Experience has shown, over the past year, that these small firms tend to low bid on the basis of a lower wage base in their countries. We do not believe that this procurement lends itself to that bidding environment as the dollar value and the Bid Bond requirement may preclude these small firms from bidding but, nevertheless, price will be the determining factor.
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In fact, all of the SatCom.doc file is interesting.
There are usernames and passwords in an .xls files. They all share the same password as well. Maybe it works the same in other places on their intranet?
To be honest, a lot of the material is outdated and none of it is particularly interesting. Sure, you can learn a lot from it... but it's not bleed edge. So take it for what you will.