To begin, go to http://admgr.liebertpub.com.  Click the Options button on the bottom right of your screen:

You have two options on this screen:

By clicking the Click here to add/edit MAL properties link, you can:

• Add a web property
• Edit a web property
• Add users to a web property
• Adjust a user's notification settings

If you click the the Click here to configure the various ad zones link, you can:

• Edit a Zone
• Create a New Zone
• Create a New Ad Position Within a Zone
• Create a New Ad Position Within a Zone
• Edit an Ad Position Within a Zone
• Add a New Ad Size to an Existing Position
• Delete a Position from a Zone
• Delete a Zone
• Set Impression limits
• Set a limit for the Time-Based Bulk ad campaigns