Vista software

Question

Recently I purchased an hp laptop with vista. Now the product after initialisation of the microsoft office 2007 through internet the key provided is valid only for 60 days. when went for troubleshoot it says that i will have to purchase the software either online or from some shop.

 

Now my queries are :-

1. Whether office 2002 can work instead of office 2007-

2. Do i have to purchase the office 2007 version or the HP dealer should provide it to me free of cost.