I purchased the six? CDs of Ghost Recon data.
Of the expansions offered on the expansion CD, I've only been able to download
Frostbite. I've tried, for example, to download The Year of the Monkey using it's downloader program and PKZIP. I always get an error from PKZIP, and the download is unsuccessful. I tried to use 7-Zip and this was also unsuccessful. What can I do?

go to ghostrecon.net
there is a dvd set avaliable with all mods for GR on them for no more than the cost price.
Ask Rocky what to do, hell help you (same rocky as on these forums)