If you're running a recent version of Thunderbird, you might want to have a look at our articles covering Thunderbird 1.5.
Before I start this part of the Thunderbird series, I would like to apologize for not being able to answer all the questions coming to my inbox. :) I appreciate all the positive feedback, and I will try to answer as soon as possible. Regardless, some of the issues will be coming shortly in a future part of this series.
Having a big flow of e-mail's dropping in your inbox can be time consuming to read, to deal with this and save yourself some time, and be able to read the right e-mails first, you might want to add a filter so Thunderbird can place the different mails in different folders. In this article I will try to show you how to make such a filter.
First thing you need to do is create a new folder, I will use the folder "Sales" as the target mail folder.

As you see I've highlighted "Local Folders", right click in "Folders" menu and choose "New folder", you will now get this window:

Name your folder (I used "Sales", choose whatever you like), choose where it should be located and press "OK".

If things are done right, you should now have a new subfolder under "Local folders". You can also choose to make a new folder during the setup of making a filter, I found it more easy to make the folder first.

Go Tools > Message Filters and you will get this window, to make a new filter press "New". As you see from the screenshot you can choose which account this filter will apply for. Pressing "New", you will get this window:

First you want to give the new filter a name, I use "Sales" for this example. Now, the settings are the real limit for what you want here. The best way is to explore a bit on your own for what settings you want. I made a filter which filters mail with comes to the mail address "sales@nidelven-it.no", and place them in the folder "Sales". As you see from the screenshot you can make a new folder here too, if you want. When you are done, press "OK", and you'll get this window:

You now have a new filter :) You can change the settings/add/remove/disable/enable filters as you like. Play a little, explore. :)
This is the seventh in a series of articles about Thunderbird, if you have Thunderbird related topics you'd like to see covered here, let us know. Comments on this article, thumbs up or flames, can be sent to articles@nidelven-it.no. If you need help using Thunderbird, we recommend using the Thunderbird forums.
If you're running a recent version of Thunderbird, you might want to have a look at our articles covering Thunderbird 1.5.
If you find these articles useful, you might also want to check out the introduction to Firefox, introduction to Open Office, Plone or the introduction to Gaim. We're always looking for more translators.