ICS on Samsung Captivate

 

Download
ROM: BUILD 16: haxer.org / eriador.org (md5: 4bcccf2f665988ab5bd40fa88b0f7621)
Google Apps: Download from ROM Manager.
Google Apps Fixer: MultiUpload / tux-head.net / faramir.eriador.org (md5: af8bcaf5f8158e8e1be7097fc86b6b28)
Google Apps Fixer will fix your problem with not being able to add Google Account or Calendar Sync, but will also reset your Google Apps data. Only flash if you're having problems. If Google Apps Fixer does not work for you, do a factory reset from CWM (or Android Settings) and do not restore system data via TitaniumBackup.

Google Apps
v7.1: MultiUpload / tux-head.net / faramir.eriador.org (md5: 8bf66137f18de45657f29c129a8f4d52)

- First time flashing ICS to your Captivate (or coming from another ROM)?

1. Root your device and install ClockworkMod Recovery.
2. Reboot into Recovery using 3-button-combo
3. Do a Nandroid backup!
4. WIPE (wipe data/factory reset + wipe cache partition)
5. Install the ROM from internal sdcard using ClockworkMod Recovery
6. Optionally install the Google Addon

- Upgrading from CM7?

1. Do a Nandroid Backup!
2. WIPE (wipe data/factory reset + wipe cache partition)
3. Install the ROM from internal sdcard using ClockworkMod Recovery
4. Optionally install the Google Addon

- Coming from another ICS build?

1. Do a Nandroid Backup!
2. Install the ROM from internal sdcard using ClockworkMod Recovery
3. Optionally install the Google Addon
4. Reboot into recovery and WIPE (wipe data/factory reset + wipe cache partition)
5. If radio doesn't work, go back to Samsung ROM and flash from there.

- Upgrading from another build of ICS by teamhacksung?

1. Do a Nandroid Backup!
2. Install the ROM from internal sdcard using ClockworkMod Recovery
3. Optionally install the Google Addon

Note: The upgrade process from CM7 to ICS is automatic, but downgrading from ICS to CM7 (or restoring Nandroid) requires flashing twice. Once from ICS and again from CM7's recovery.

Source