Choose which version of TechGems you want to register:

The best way to know which version of software you own is to check the first number of your PASSWORD (number found on the yellow sticker on the back cover of your CD box). If the password begins with 3 you own TechGems 3.0, if it begins with 4 you own TechGems 4.0.
TechGems 3.0 (password begins with 3)
TechGems 4.0/4.1/4.2 (password begins with 4)

TechGems 4.0/4.1 Lab Kit (School Version) - Net 10

TechGems 4.0/4.1 Lab Kit (School Version) - Net 20