Current angstrom sources, version is 3.2.18, don't match opkg upgrades.

I have the current angstrom kernel source cloned. It’s version is 3.2.18. Any attempt to use opkg upgrades my system to the 3.2.28 kernel breaking my system which requires my modified 3.2.18 kernel. I am configured for the beagleboard. I attempted the fixes of doing a pull, removing ti-meta directory tree and performing a ./ update. This operation just reloads the old 3.2.18 configuration. I also tried the checkout method. It results in a error message about denzil already existing. Can anyone help me?