Searching for iPad 2G and iPad 1G firmware restore? Below is a list of direct links for every firmware released.

Note: Updates will be posted as the latest firmware versions are released.

3.2.0: iPad1,1_3.2_7B367_Restore.ipsw
3.2.1: iPad1,1_3.2.1_7B405_Restore.ipsw
3.2.2: iPad1,1_3.2.2_7B500_Restore.ipsw
4.2.1: iPad1,1_4.2.1_8C148_Restore.ipsw
4.3.0 (1): iPad1,1_4.3_8F190_Restore.ipsw
4.3.1 (iPad 1): iPad1,1_4.3.1_8G4_Restore.ipsw
4.3.1 (iPad 2 Wi-Fi): iPad2,1_4.3.1_8G4_Restore.ipsw
4.3.1 (iPad 2 GSM): iPad2,2_4.3.1_8G4_Restore.ipsw
4.3.1 (iPad 2 CDMA): iPad2,3_4.3.1_8G4_Restore.ipsw
4.3.2 (iPad 1): iPad1,1_4.3.2_8H7_Restore.ipsw
4.3.2 (iPad 2 Wi-Fi): iPad2,1_4.3.2_8H7_Restore.ipsw
4.3.2 (iPad 2 GSM): iPad2,2_4.3.2_8H7_Restore.ipsw
4.3.2 (iPad 2 CDMA): iPad2,3_4.3.2_8H8_Restore.ipsw
4.3.3 (iPad 1): iPad1,1_4.3.3_8J3_Restore.ipsw
4.3.3 (iPad 2 Wi-Fi): iPad2,1_4.3.3_8J2_Restore.ipsw
4.3.3 (iPad 2 GSM): iPad2,2_4.3.3_8J2_Restore.ipsw
4.3.3 (iPad 2 CDMA): iPad2,3_4.3.3_8J2_Restore.ipsw
4.3.4 (iPad 1): iPad1,1_4.3.4_8K2_Restore.ipsw
4.3.4 (iPad 2 Wi-Fi): iPad2,1_4.3.4_8K2_Restore.ipsw
4.3.4 (iPad 2 GSM): iPad2,2_4.3.4_8K2_Restore.ipsw
4.3.4 (iPad 2 CDMA): iPad2,3_4.3.4_8K2_Restore.ipsw
4.3.5 (iPad 1): iPad1,1_4.3.5_8L1_Restore.ipsw
4.3.5 (iPad 2 Wi-Fi): iPad2,1_4.3.5_8L1_Restore.ipsw
4.3.5 (iPad 2 GSM): iPad2,2_4.3.5_8L1_Restore.ipsw
4.3.5 (iPad 2 CDMA): iPad2,3_4.3.5_8L1_Restore.ipsw
5.0 (iPad 1): iPad1,1_5.0_9A334_Restore.ipsw
5.0 (iPad 2 Wi-Fi): Pad2,1_5.0_9A334_Restore.ipsw
5.0 (iPad 2 GSM): iPad2,2_5.0_9A334_Restore.ipsw
5.0 (iPad 2 CDMA): iPad2,3_5.0_9A334_Restore.ipsw
5.0.1 (iPad 1): iPad1,1_5.0.1_9A405_Restore.ipsw
5.0.1 (iPad 2 Wi-Fi): iPad2,1_5.0.1_9A405_Restore.ipsw
5.0.1 (iPad 2 GSM): iPad2,2_5.0.1_9A405_Restore.ipsw
5.0.1 (iPad 2 CDMA): iPad2,3_5.0.1_9A405_Restore.ipsw

Check out Where To Download iPhone Firmware Restore Links, Where To Download iPod Touch Firmware Restore Links and iJailbreak Downloads Section