Linksys B Router...

In your router's configuration utility, you can establish a password-protected account profile for your own machine. Consult your router's documentation or your router vendor's support pages for particulars. You also could install a 3rd-party software firewall and configure it to block all but specifically-approved-by-you access to your machine from other machines on the same network (but be sure not to restrict your own machine's interaction with your router and/or internet connection interface). Again, particulars will be available in the firewall's documentation or on the firewall vendor's support pages.

If your operating system is WinXP, you can Encrypt Folders. There are many folder encryption or protection applications available for download on the net which will work with any Windows operating system, but they aren't free.

That's cool, thanks Timba. I'll call my router's company and see if they can help specifically with my problems.

I was just wondering does anybody know how to find out our own IP address of our router?

Is there such a computer programming program where another user can see details of our own computer's log files?

Your router's address is the address you use to go to your router's configuration page (typically 192.168.1.1)

If you're that concerned about keeping your machine private, password-protect your Windows Logon, set your screensaver to prompt for password on return, get yourself a 3rd-party firewall and lock your machine down - lock out the network IPs of the other machines on your network. That way, unless the folks you're concerned about are pretty savvy hackers, they won't be able to access anything on your machine.

Of course, if they're sophisticated enough, they can get in; damned near any countermeasure can be defeated - just thought I'd mention that, to keep your paranoia going.

Geez, thanks a lot.

Not paranoid, anyways 3rd party firewall?

Machine lock down?

Lock out the network IPs of other machines on my network? For this one is it down in router configuration?

No, you should get yourself a software firewall, other than the one that comes with Windows XP. "Third Party" refers to a vendor other than Microsoft, in this case; you are the first party, Microsoft, the vendor of your operating system, Windows, is the second party, and any other software vendor is a third party. A good list of security and privacy software, some free, some paid, is available HERE.

When you have selected and installed a software firewall, consult its documentation - usually found under "Help", for instructions concerning configurtion. Many firewalls have user forums you can visit for consultation with other users.