iOS 3.2.2 is available for iPad 3G and iPad WiFi.Download links are also available.You can download iOS 3.2.2 firmware from links below.
iOS 3.2.2 is compatible with both the iPad 3G and iPad WiFi models. You can install iOS 3.2.2 on iPad by connecting it to iTunes, then click the Update button on the Summary tab to update the software. You can also download iOS 3.2.2 firmware from the link below:
iPad1,1_3.2.2_7B500_Restore.ipsw (iPad 3G + iPad WiFi)