OK in our company we have a RS6000 machine...that uses AIX as its OS, and there is a text file on it that I need to gain access from the outside because I need to write a CGI program/webpage that collects information from taht text file, that's why I need a perl program taht have access to that text file on the Unix system, is that more clear?

No.
Have you talked with the sysadmin of this box? does your RS6000 have, say, FTP, telnet, or SSH enabled? Can the file be placed in a public or trusted network share or web site? How would you, as a person, as a user, get to the file?
If the answer is "I don't know" you need to do more legwork, and less programming.