Currently Being ModeratedDec 10, 2012 9:25 AM (in response to Tangelia)
Welcome to the Apple Support Communities
See > http://support.apple.com/kb/HT4972 After upgrading to the most recent version, you'll be able to update on Settings > General > Software Update
Currently Being ModeratedDec 10, 2012 10:02 AM (in response to Tangelia)
If you have an iPad 1, the max iOS is 5.1.1. For newer iPads, the current iOS is 6.0.1. The Settings>General>Software Update only appears if you have iOS 5.0 or higher currently installed.
iOS 5: Updating your device to iOS 5 or Later
How to install iOS 6
iOS: How to update your iPhone, iPad, or iPod touch
If you are currently running an iOS lower than 5.0, connect the iPad to the computer, open iTunes. Then select the iPad under the Devices heading on the left, click on the Summary tab and then click on Check for Update.
Tip - If connected to your computer, you may need to disable your firewall and anitvirus software temporarily. Then download and install the iOS update. Be sure and backup your iPad before the iOS update. After you update to iOS 6.x, the next update can be installed via wifi (i.e., not connected to your computer).