vinnyh: Run Software Update
If you haven't done this aready, click the "Software Update..." item in the Apple menu (top left of your screen). This will scan your machine for any OS or security updates that you need to download. If there's a long list of 'em, you may want to pick a subset to download and install. This will probably require a reboot (the leftmost column of each item that needs to be installed will contain a left-pointing triangle in a circle if a reboot is required -- if any of the items you select contain that icon, then you will need to reboot when your updates have been downloaded and installed). Repeat as many times as necessary. Note that you may not need BlueTooth, iPod, or other updates if you don't have any applicable devices, in which case you can put those items into your "ignored" list by selecting the item, then clicking the "Ignore Update" item on the Update menu. To get more info on any individual item, click it and it will be displayed. Oftentimes, that info will contain a link to still more info on Apple's site.
Once you've installed all your updates and rebooted as many times as you've needed to (if you try installing everything in one fell swoop, which may well work, then you'll only need to reboot once), get familiar with your firewall and other Sharing preferences. Find your "System Preferences" application, which is accessible either through the "System Preferences..." item in the Apple menu, or (probably) in the System Preferences icon in the dock. Then find the "Sharing" preferences panel within it. Your firewall should be on. And all the items in your Services pane should be off. You're now secure, and can rest assured that there are no threats to your machine for the time being. Worry about Virex another day (or week, or month). Once you've got your machine working the way you want it to, and are comfortable getting work done on it, then worry about Virex.
You may also want to experiment with turning on some of your PowerBook's services. Sharing your iTunes music collection is awfully cool, f'rinstance. When I went back to my college for a reunion last year and jacked into their network in one of their libraries, I found that there were already two or three other iTunes music collections being shared there, and I tuned in for a bit while I did other foreground tasks. I shared my own collection at the same time as a matter of courtesy. You will probably find reason to eventually try out Personal File Sharing, Personal Web Sharing, FTP Access, and maybe even Windows Sharing sometime, too.
You've bought yourself an awfully nice machine, enjoy it!
AI
