Are there two versions of Half-Life Blue Shift?

I have an old Dell Dimension 2400, 2.2 Ghz Celeron processor with 1GB of RAM and the GeForce FX 5500 video card. Not a machine for recent games, but it runs the old FPS games (Half-Life, Far Cry, NOLF and the old Tom Clancy games) which is all I play. I would like to play Blue Shift but I noticed that there are two different versions of it for sale on Amazon.com. One is by Vivendi Universal for Windows 2000 / 95 / 98 / NT. The other is by Havas for Windows 98. Other than the fact that the one by Havas is obviously older (and probably slower) are there any other differences? They cost about the same on Amazon.com.