Trying to do replacements

[NTLDR]

I only know abit about it, regular expressions aren't my strong point.

@dontpanic: tofind is the search code, like survivor and replacement is the code to replace it with, I just used those as they were shorter. The ^ before the bracket should negate whats in it so if it matches the first part, but not the second then it does the replacement. At least thats how you want it too work.