I call the microsoft on the phone listed, but its always busy. Is there a crack available on activating the code.
I think the preceeding replies to yours that contained this comment would have been enough..
Product activation is a pain in the arse.. but it isn't impossable..

option 1 telephone..
IF your system is setup correctly it will by default Dial the nearest M$ activation server (BTW you don't talk to a human.. you key the numbers in on your phone, in groups of 6 then listen for the reply)..
Option 2 Internet.
You use your internet account to connect to the server.
Option 3 Internet 2
You remove your current ISP account.. the Activation prog then uses the it's own number to connect to the nearest M$ server..
Time taken 10 to 15 mins if using the phone approach less than 5 on either of the internet options..

That is all to the Pain.. Now IF the reason you have a problem with the advice given is that the copy you have is not legit.. this is not a Crackz or warez site, and asking for cracks is the quickest way of finding yourself looking for a new account (ie Banned) .