[X-Newbies] Adobe Reader upgrade

[cy]

Hello all;

I am trying to upgrade Adobe 5 so that I might print ePatterns for my 
bride.  When I download a pattern, the desktop shows a file named 
"boomframe" etc., not a pdf.  When I  download Adobe Reader upgrade,  I 
get a file "ar.505.enu.bin" which opens ToastLite! What am I doing wrong 
and how can I correct it? I suspect that I may be dealing with two 
different issues.  I might mention that I have some visual impairment so 
that, even with magnifier in hand and window zoomed, I may be misreading 
directions.
iMac DV+ 450, 768 MB
OS X 10.1.5
Netscape Navigator 7

I certainly would appreciate any suggestions, at least those in good 
taste.

cy