Where can I download LDraw?

[Orion Pobursky]

Search for the ldraw All in One Installer. You'll get everything.

I am new to the LDraw community and am having issues downloading the complete pack for Mac OS.

every time I click on the link to get LDraw it takes me to the latest parts page.  The complete pack is for windows.  It has a .exe file which is not compatible with Mac. 

Please help.

I assume you are following the Mac instructions here:
http://www.ldraw.org/help/getting-started/mac.html

Per the instructions, you'll want the "complete.zip" file.