What is MIM and SpoofMac.
Is SpoofMac from Cydia? Is so...then that is a way way outdated package.
What is MIM.
You do realize that you cannot just install "anything" from Cydia. Some packages are way outdated....or specifically made for older devices with older iOS versions.
Some packages are not made for an iPhone at all. Some are iPad only, iPod Touch only, iPad only.
You should not install "anything" that does not *specifically* state that is compatible with your iOS version. It's common sense. Just like a computer.
Chances are the packages are not updated for your iOS version...and won't work...not because of the jailbreak...buy just simply because the packages are old and outdated...and just not compatible with your iOS version and/or device model.