The tutor and,
here it goes
1)Install your 2 favourite corelets using .jad in order according to your taste .
eg: Install iTunes then MV or MV then iTunes.
2)Enable Shortcut from 'Games & Apps' for corelets
or patch your CG1 with 'Corelet to show in Games & Apps' patch.
3)Restart phone.
4)Wait for the first corelet to load up.
5)Unload corelet if you want to change to the other.
6)Press combined shortcut or select corelet to load from 'Games and Apps'
7)Your second corelet will load.
It's a lil' complicating based on my tutor
If you still can't get it, here's Yuet's simplified version
http://yuetblog.blogspot.com/2006/11/how-to-install-dual-corelets.htmlAnd remember if you want to activate the second corelet,
you have to unload the first one.