Is it worth re-buying Uplink to get a version Steam keeps running on Windows 7, if you have the original? (That question comes up a lot for old games).
No guarantee it will run on Windows 7 because STEAM sells the game.
Here's a suggestion [from the uplink forums] to get Uplink to work on Windows 7 -
"get the installer working (use Win98 or XPSP2 compatible mode), then when fully installed, Do not start the game. download the latest patch (at time of writing, patch 1.54) from here
http://www.introversion.co.uk/uplink/otherfiles.html , then install the patch, and disable the compatible mode, and it should work perfectly. well at least does for me, Win 7 Ultimate x64."
Disclaimer from the developer about Windows 7:
http://www.introversion.co.uk/support/
Windows 7
At the moment we cannot guarantee that our games will run under Windows 7. We are working on a series of patches to ensure compatibility, which should come out in the next few months. In the mean time the games may run, but only if you have the latest graphics card drivers from Nvidia, ATI or other vendor.
Use the $3.40 to go buy a Spicy BBQ burger from Sonic instead.
On that note - Settlers 7 Deluxe edition [$19.99] is at a price low enough where I'm willing to put up with the DRM scheme