First off my JTAG is on dash 12611 and the xbox I'm trying to system link with is on dash 12625. Does this matter?

I'm having trouble joining a system link game I host with my JTAG. What do I need to do to update the files on my JTAG so that my xbox can join a system link game?

Do I need to install a title update? What is the current title update version for black ops?

I've tried running a tu4 default_mp.xex with rsa sig checks on my JTAG but it only freezes and never actually loads.

My ultimate goal is to install an infections patch_mp.ff on my jtag, system link to get the infections and go online with my xbox.

Can anyone help me out or point me to a good tuturial?

Thanks

Snowdaysrule1