Messiah 2 Pro Install Questions

[slevy007]

I have a v7 Ps2 and i want to install a Messiah 2 pro.

First, what is the difference between firmwares?

When it comes to installing it, do i have to worry about messing up the ps2 with a 15w soldering iron?

Do i need to use flux? If so when and where? I ass because i have heard some people say they dont use it.

I have a radioshack soldering pencil, will that do in installing the chip?

Do i have to glue the chip and wires?

Also, please can anyone give me some tips on doing the install?

Thanks so very much.