I cant log on to my system, it is asking 4 updation of vista

When you try to activate vista, Microsoft checks if the 25 character code from the vista cd case was submitted before by someone.
If you bought the windows so it is genuine then obviously noone has submitted the key before, so they accept it, and send back the confirmation ID. So that is where you get it from.

Since you do not have internet, you probably have to do the phone way of activation. So when windows prompts you for activation choose

"Use the automated phone system to activate"

This gets you the phone number related to your area. Select your nearest location and click next.

Click continue for UAC support.

Then you get the local phone number and a set of numbers generated by windows which you will need during the phone call.

Call the activation phone number that it gave you, it will be a machine voice on the phone asking you to repeat the numbers that windows gave you or type them into your phone via the buttons. Do one of the two.

The automated service then gives you the confirmation ID. Make sure you have paper and pen ready, write the numbers down! (should the activation be NOT successfull, do not hang up, you will be transferred to an operator).

If it worked, and the automated service gave you a confirmatino ID, then type the confirmation ID into your vista activation screen, where it asks for it.

Then you get the activation was successfull window and you are done!!:)

If you are unsure about the whole process, then just get so far to call the number, and fail at the activation, stay on the line and wait for the operator, they will help you with it, just explain the situation.

If you have any more questions, please let me know, will gladly help.

Let me know if this worked and if it helped, please rate me. :)