Activating Photoshop CS1?

I've had a Photoshop CS1 disc for quite a while.  Just recently I tried to install it on my new laptop, but it wouldn't let me activate the program, saying the activation server was no longer available.  I looked around on the Adobe website for solutions, but the only one I found was a download of Photoshop CS2 that didn't have to be activated.  I tried downloading this, but the serial number I put in was invalid (I tried it both with and without dashes).  I figure it's because the serial is from CS1, not CS2.

So is there any downloadable version of Photoshop CS1 available, similar to the CS2 one?  Or any other way I can activate this program?  I can't even use it without activation.

I'm running the program on Windows 7, by the way.  The program worked fine when I first installed it, but I could only use it for thirty days before activation was required.  Any help would be appreciated.