This version of MARK no longer supported

I have been trying to install MARK and keep getting this message as soon as the setup begins: This version of MARK no longer supported.
I have downloaded the old help file, but that did not fix the problem. I am running Windows Vista, the 32 bit version, and did run the 13 Mb setup.exe as an administrator.
What am I doing wrong?
Thank you!
I have downloaded the old help file, but that did not fix the problem. I am running Windows Vista, the 32 bit version, and did run the 13 Mb setup.exe as an administrator.
What am I doing wrong?
Thank you!