I use Windows XP, 32 bit and everything worked fine. If you can't try my method on other computer or operating system, I can suggets you another method, which I had tried succesfully before using Switchblade and it works well, too but takes much more time, (even more than a day!) to generate .roq file, because it proceeds every frame more than a few seconds, so it's much slower than using Switchblade.
But if Switchblade doesn't work on some computers, I can write a few sentences about this method:
You need a video file and a .wav file the same as when you want to use Switchblade, BUT you, using e.g. VirtualDub, you have to eport all frames from your .avi file as TARGA files (512x512 resolution). Then, download this program:
In the next step, you have to put all Targa files with your video's frames, the .wav file and files from the .zip file (roq.exe and RoQCreator.exe) in a directory, which whole name cannot be longer than 8 or 10 (I don't remember) characters (that's because of some problem with this program, it can't read longer directories).
Then you have to do everything, as it's written in README.txt in the downloaded .zip file. When the compiling begins, you will have to wait quite a lot time (it depends on file's size), because the compiler will be proceeding every frame for a few seconds and a video, which lasts a few minutes can have thousands of frames in TARGA to be proceeded, so you must be patient. The compiler will show you estimated time to the end, in my case for a 16 seconds video, I had to wait about 4 hours!.
Luckily, I later found the tutorial about using Switchblade to compile .roq files which is A LOT faster. I think it's obvious, why I have decribed only that method, but as I see, some people may not be able to launch the Switchblade, so in this post I decribed the older method with another compiler.
PS: Your version of this tutorial is quite good, maybe I will improve it a bit, if I find some time.