Not necessarily. From what I gathered from a few MCF threads (especially RedPower's), GregTech will work, but the moment anything from GregTech shows up to be resolved, just hit the "Raise the Priority of this Mod" button, ID Resolver will leave it at the ID's it wants and continue on. It's how I got Redpower to work without the "setupBlocks" error.
This worked for me. Thanks. Although now the computer won't crunch any numbers no matter what I press or put in the grid. I'm still completely new to the mod addon so it's a matter of getting past the learning curve. I just hope this isn't another bug.