I'm assuming you are familiar with what rooting is, and the risks you take? What are you looking for exactly? Most (or likely all) of what you need can be found by doing a google search for "Samsung Captivate root method". As for Android 2.2, I know there is an Android 2.2 ROM floating around for the international version, but I don't know if anyone has made one for the captivate.

-----
Recommended reading for new AndroidPIT members! Important to all community members: the AndroidPIT Forum rules

when i attempted to root my droid for the first time it bricked 3 times due to a bad download. i was lucky my friend knew what to do. we actually had to put his SD card in my phone and upload his recovery image to my phone to keep it from loop booting.

ookay now i understand what is rooting is all about.....anyway im new on this one and a new android user im using an xperia 8 judging on your comments/posts scared me dont want to brick my phone but i do want to learn on this one

Have you read this post yet? http://www.androidpit.com/en/android/forum/thread/403299/So-what-exactly-is-rooting-and-is-it-for-me

-----
Recommended reading for new AndroidPIT members! Important to all community members: the AndroidPIT Forum rules

@douglas thanks sir for the info on rooting and the links that you provided seems rooting has a it's own downside maybe i should go to the safer side since im a new android user

there are ways to fix a bricked phone. i bricked my samsung vibrant after it was rooted by trying to install a kernel and I fixed it. it wouldn't go part recovery screen

ROOTing your phone makes you the Sysop (System Operator) of your phone (system). Allows u full control to do things you normally can't. I recommend viewing the XDA forums for more in-depth discussions on this topic. IF NOT DONE CORRECTLY, U CAN BRICK YOUR PHONE. Brick=Useless, as in boat anchor...

www.XDA.com

thx, let me know about more

We are running an application which is reading a large file over Bluetooth. We are encountering Heap memory issue. On Android 2.2 on a similar tablet, we could root and use VM heap tool to increase the heap. We are unable to do this on 2.3. Any suggestions? This has become very critical now for our "Go Live"activity. Thanks to all.

Heres a video I did here at Androidpit that explains rooting:

http://www.androidpit.com/en/android/blog/401373/What-is-Rooting

I have owned ALOT of Android devices and never bricked one of them. Not only can you do a lot more with your phone, it will run soooooooo much smoother.

I HIGHLY recommend rooting.

hey if your determined to root despite the risks go slow do lots of research about your specific phone as its different for each handset particulary how to recover if something goes wrong. ok that said just Google root and your handset there are lots of forums out there with instructions again don't rush read through them find instructions that are clear and you understand and be prepared for the worst ie have files for recovery ready to go should something fail and know how to put phone back in download mode if it should soft brick these are the things I didn't do my first time and I ended up going a week with no phone after while trying to find solutions. good luck

Exactly which droid do you have?