Feel free to purchase that download, but don't be disappointed when you realize it doesn't work with EQEmu. Our client compatibility is made for very specific client versions and the downloads you get from Amazon are NOT the same downloads our client compatibility was made for from the Steam clients.
From what I have heard, the Amazon downloads are only partial client installs to begin with and are missing most of the files. Their downloads expect you to patch to get all of the files and most recent client. The Steam downloads included a complete (or very close) client for the versions that were available at that time, which is why we worked on compatibility specifically for the Steam clients. I am sure that the client build date from the Amazon downloads do not match any of our compatible build dates shown here:
http://www.eqemulator.net/wiki/wikka...ClientVersions
In other words; do not purchase the Amazon digital download as recommended in the above post!