MacBook stuck with kernel panic message

[got2give2get]

I was trying to help my husband with his phone. I followed the phone's manufacturer's suggestions and it told me load software for managing it. When I went to install it the computer told me it had 59 things to install. It was late, I was tired and shouldn't have been doing this at this time. I did, when it was done installing we had a kernel panic. I am in a different country, in a village. No MacStore! I am frightened and worried. I am computer literate for a person my age, but still. If it is to be resolved I will have to do it and I wish the kids were here with their friends.
I am hoping someone will be able to talk me out of this predicament.
I have tried to press the shift key for safe mode. No result. I have tried another one that has me pressing some buttons while loading and text comes up and I am supposed to type in FSCK -fy However this could not be done as the cursor was there, but no text was appearing.
I think that is all I have tried. I do have my MacBook here and it is slightly older than his. I may have a firewire that may work to run his off of mine. I don't know. Can't you come in like Verizon did years ago and fix it right in front of me over the internet?

 

[Giaguara]

Hi and welcome
So to summarize, after those software installs the Mac now kernel panics always, and you can't get it to boot in normal mode, safe mode, or single user mode?

Safe boot take will take longer. Does it panic when booting with this method, or does nothing seem to happen? If nothing seems to happen, wait a bit longer, and release shift when you'll see the notion of 'safe boot' on the login screen. If it will eventually boot there, perhaps you can find the added software and remove it.

If it kernel panics in safe boot, I'd probably go with archive & install - do you have the install discs that came with that computer?

I guess it wouldn't hurt to try to reset PRAM too, just in case, before looking at archive install as it will take about one minute (definitely faster than reinstall).