First verify that you in fact have a folder for Junk, it's typically named 'Junk E-mail'. (If you don't have a Junk email folder consult your IT administrator)
Start the Rules Wizard: Select from the top menu 'Tools > Rules and Alerts...'.
The Rules and Alerts window will open, make sure the 'E-mail Rules' tab is selected and click 'New Rule...' to open the Rules Wizard window.
In the Rules Wizard window, (Outlook 2003 only: make sure the dot 'Start creating a rule from a template' is selected), then below under 'Stay Organized' select 'Move messages with specific words in the subject to a folder', click 'Next >'.
In the next window, select (and leave checked) 'with specific words in the subject'. Down below, anything underlined in blue is click-able, to edit, so click on 'specific words' (Step 2). In the Search Text pop-up window, type in the words to search for in the subject. Ohman Automation customers should specify the word '[XS-PremFilter]' to only move to the junk-mail folder, that the server tagged with the Premium Filter.
After typing in your word, click the 'Add' button so that it appears in the lower Search List, and then click 'OK'. You will now see the word you entered in the lower portion of the Rules Wizard window. Now click the blue underlined 'specified' to define a folder to move to, you will get a pop-up window that will let you select the 'Junk E-email' folder, and then click 'OK'.
Now you can click 'Next >'. Oddly, the Rules Wizard doesn't seem to change, but in fact it has added the phrase 'and on this machine only' to the rule in the lower part of the window. Click 'Next >' again. NOTE that this next Rules Wizard window reads 'Are there any exceptions?'. This would be an opportunity to define exceptions, say if a particular sender was getting falsely tagged you could define an exception that says "except if from Santa Clause".
At this point, you probably don't need to define an exception (you'll be carefully reviewing your Junk E-mail folder anyway for exceptions?!), so make sure nothing is checked in the upper part and click 'Next >' . The final Rules Wizard window lets you name the rule, perhaps enter something like 'Tagged Junk #1'. It's your choice to check the 'Run this rule now on messages already in "Inbox"' (or you can run the rule after the wizard is done). Make sure the 'Turn on this rule' is checked and click 'Finish'.
You will return to the Rules and Alerts window, take a moment to review the options here: Change Rule, Copy, Delete, etc. If you would like, you can click the 'Run Rules Now...', check-mark the rules you want to run, then click the 'Run Now' button, then click 'Close'. You can click the 'OK' button to close the Rules and Alerts window.
Of course, you can return to the Rules and Alerts window at any time if this rule needs further tweaking, or if you'd like to run the Rule again.