1.5.2
May 2, 2013
as of may 11, 2013, 10,450,125 minecraft accounts have been purchased.
When the next update comes out (which will be May/June 2013.)
It will be the 1.6 update, released May/June 2013.
Yes, Minecraft works perfectly. Minecraft is programmed and runs on java, so that it can be played on a variety of platforms - including Mac, Windows, and Linux. If Minecraft doesn't work for you, you may have to update your version of Java.
It is either the server no longer exists or it may be outdated.
No your have to wait for the mods to update which may take some time.
Minecraft 1.5.2 was released May 2nd, 2013. For a full list of release dates of each version, click the related link below.
This is a question to ask on the My Minecraft Mods forum topic. It may not be compatible with a Mac yet.
You may need to download the newest version of Java for minecraft to work. Or maybe your computer can not handle it.
2013