Files can be made hidden, and unhidden through the same process. If you specify what operating system you're using, I can tell you how to find those hidden files (Different for most).
Ooh, uh...Windows 2000 is a bit..outdated, I'd expected a minimum of Windows XP...
This oughta do it...
The funds for what, exactly? If you don't have money, just tell him.
One drink should be fine. .08 alcohol seems to be the limit in most modern day countries, except in Russia where I believe it's .02. Just don't drink anymore than two.