Hey dude and dudette, it is not lame to hack files to extract or replace content. It is a matter or right or wrong. You wanna be a white hat hacker? You must begin somewhere...
So, with this fresh in memory, I offer you some tip to do what you want. Replacing text string in a binary file is very very easy, and would not crash original code. It is the original poster's intent to change some of the built-in messgae to say something else. The this is just a simple scan for encoded message with the binary or text file. Most messages or strings of this nature are not encode, so you have 50% of success.
1) Just locate the file, dll, any file, that you think would store this message.
2) open it with a hex file editor. This is like notepad, but instead of ascii you get binary hex digitsl in a table column format.
3) scan for text string or partial text pattern. Replace new text with exactly the same amount of character count. Do not overide any other bytes. Do not delete, do not insert, just over-write.
NOTE: make backup or original file before you even open it in a hex editor. Okay? If you new, always safe to have a backup original copy.
Need more help? I am sorry I can't be anymore detail than that.
jujubefruit