I am unable to open Adobe Reader 4.5
Are you sure it's 4.5? I haven't seen anyone in here using that in years. It would be very very old and outdated.
I go to the down load and it appears in a chinese font.
Download what? Do you already have Reader and you are trying to download a PDF, are you trying to download Reader because you don't actually have it? You'll need to be a little clearer on what is happening to you and what the problem is.
Are there any compatible programs for Adobe Reader 4.5
Again, you need to be clearer.