Is it possible to stop notifications of an OTA update? I rooted and modded my Samsung Prevail (Gingerbread) a couple weeks ago, and all is going well there.

However, I am now getting notices about an OTA system update, which I have no intention of installing. I will wait for the makers of my mod to produce a parallel version.

In the meantime, is there any way to kill the constant notices about the update?
On my S2 running ICS, there are options available for notification as well as downloading via Wi-Fi. Look under SETTINGS > ABOUT PHONE > SOFTWARE UPDATE

If you don't have such options and you have a rooted phone, use software like Titanium Backup to FREEZE the software update module.