To clarify: File::Find has been part of the perl core modules since 5.0: it should always be installed if you have perl5 installed. You could - in principle copy the File.pm file to a local *) directory and use lib to reach it.

In general, (on Unix) you can install modules in your own homedir using the PREFIX option.

See Installing Perl modules locally and installing local modules (the last link also discusses win32)

*) update: with "local directory" I mean a directory on the server that you have write-access for, like a subdirectory of the directory that your script is installed.