Registration Key not accepted

Hi i am trying to install Avast free on a freinds computer but it will not accept the registration key.

I have reregistered twice, reinstalled the program 3 times, checked for registry issues, nothing works it keeps saying the the registration key is invalid even though i have copy pasted it from the email and tried 2 seperate keys…

HALP!

Are you trying to register version 4 or 5?
Which is the operational system?
Are your system time and date correct?

v5
XP sp3
Yes

Also avast cannot connect to its web server to update or use the online registration tool… ???

(Internet is working fine otherwise)

Try again, maybe just a temporary glitch on the servers…

I have been trying to get a new registration key 4.8 for three days with no success. I tried a key for a renewal I got a few weeks ago for my desktop and it won’t take it. I am not sure if this has any bearing on your situation but thought I would share the info.