Hello apprd,
You can find out which version of AVG you are using in Help - About AVG - section license details.
AVG Free does not have an expiration so you are most likely using AVG trial version of one of the paid versions.
Thank you
How can I tell which AVG package I have. I am being alerted that my protection is about to expire, but I can't remember if I am using the free antivirus version or if I paid for more. Whichever I did, I am happy with it and want to continue with what I have. Thanks.

Chowhound
Comic Vine
GameFAQs
GameSpot
Giant Bomb
TechRepublic