Pointing my PN domain at my CCGI space.

[#1]

Have updated my domain DNS records as follows:
Additional DNS records (Advanced)
Left field Type Pri Right field
mx                      20               mx.last.plus.net.
www           cname               ccgi.plus.net.
However it does not work.   IS there anything else I need to do?  Should it update straight away?
Should the "Domain Hosting Settings" be changed from default to "Other"

[#2]

How many hours have you waited before trying it? DNS changes take some time to propagate.

[#3]

I suspected that might be the case, however I found it odd that the page did not mention the rather important bit of information.

[#4]

After leaving it overnight, it's not worked, my Plusnet domain name is still pointing at my regular webspace.
How can I get it to point to my CGI space?
Thanks.

[#5]

The right field should be ccgi.your plusnet username.plus.com.
MAKE SURE you include the . at the end of com