Thanks for the support.
I used the plugin installer.
I had a problem with my Jetpack stats. My historical data was lost and I contacted Jetpack. They send me the following email that confused me and I am not sure if they are correct. Please have a look:
We've been looking over your site, and it appears that there are some issues with the domain mapping configuration. If you view the source on your homepage (http://capeholidays.info/) you will notice that the capetownholidayaccommodation.ilocals.info URL is being used. With proper configuration, we would be seeing capeholidays.info instead.
We also noticed that both http://capeholidays.info/ and http://capetownholidayaccommodation.ilocals.info load the same page. With proper configuration, capetownholidayaccommodation.ilocals.info would redirect to capeholidays.info instead. This not only can cause problems with Jetpack, but it might also cause problems with duplicate content in Google.
I would recommend that you first straighten out the domain mapping configuration. I bet the folks over at http://wordpress.org/support/forum/multisite will be able to help you out.
After that issue is resolved, we can get everything straightened out with Jetpack.
Regards and thanks again.