Doug, the way you're trying to do it is the newer method that Google has given users to set up filters, you can also go this way:

- Go to your settings in GMail (click on the gear)
- Click on the Filters tab
- Look at the bottom of the page and you'll see the link for "Create a new filter"

It still brings up that search box, but it's a nice way to start from scratch. Then you just set up your rules and save it. GMail will also give you the option to apply your filter to previous emails that match your new criteria.

But I have to agree that setting up filters for spam is not the way to go. Simply mark it as spam and go about your day. You might get more of that spam, but eventually it should work its self out. What's more, you'll be helping out all the other GMail users by helping GMail identify spam messages.

Plus, you have to be very careful when setting up a filter for spam. The potential for false-positives is great.