Many of my new customers have Typepad accounts (such as www.heatherporto.typepad.com) and register their domain names with Go Daddy (say www.blogsbyheather.com). 

Domain Mapping is a feature of Typepad which requires setup steps on Typepad as well as Go Daddy.  Although Typepad has an article on this, I thought I’d write up my own tutorial outlining my own experience with Domain Mapping with Go Daddy.

On the Typepad side:

• Login.
• Click on the Control Panel.
• Click on Site Access.
• Click on Domain Mapping.
• Scroll down and click on the button “Begin here: Map a Domain.”
• In the next window, type the name of your domain such as www.blogsbyheather.com.
• Then click the button "Get DNS Settings."
• A little box with this type of information will appear:

  Domain: www.blogsbyheather.com
  Points to: heatherporto.typepad.com

The important thing to note here is the “Points to”.  This is the address you will use in editing Go Daddy CNAME record (see instructions below).

• On the next screen (step 3), this is IMPORTANT.  If you are only planning on using this one weblog, then click the first option (My Main Site).  However, many users/demonstrators have a typepad account that supports multiple weblogs. If you plan on using multiple weblogs and registering multiple domain names, then click the 2nd option (My Weblog and select which weblog).
• Then click Add Domain.
• Then click Close Window.
• Now you will see your Domains listed at the bottom. 
• NOTE: You will eventually come here and click the ACTIVE checkbox and then SET.  However, you have to wait at least a few hours to make sure the Go Daddy updates have completed.

Now you are ready to set it up on the Go Daddy side:

• Login to Go Daddy.
• Click on My Account from the right, upper area.
• Then click on Domains in the left sidebar area under My Products.
• Click on your Domain Name (such as www.blogsbyheather.com).
• In the middle, under Forwarding.  Make sure it is turned off!  If you see something there, click on it and then uncheck the Enable so it then becomes inactive (unchecked/disabled) and no forwarding is present.
• Then, from under Total DNS, click on the bottom link, "Total DNS Control and MX Records."
• Here check the box to the left of www. 
• Then all the way to the right, click on the Pencil icon to Edit.
• Click Yes to the prompt about editing the CNAME record.
• From the next screen, leave the alias as www.
• In the Points To box, enter your typepad account such as heatherporto.typepad.com  (do NOT use the http:// or www in front).
• Click OK.
• Click OK when you get the successful change message.
• Now you have to wait a while (at least an hour) for the Go Daddy changes to take effect.

Remember, you will need to log back into your Typepad account, Control Panel, Site Access, Domain Mapping, and then scroll to the bottom where you see a list of domains.  Check the box for ACTIVE next to the newly mapped domain, and then click SET.  View your site and the mapping should be in place.  If there is a problem, simply uncheck the Active box and click SET (to undo it).  Feel free to contact me if you have a problem.

Hope this helps!