This is an old revision of the document!
http://www.microsoft.com/oem/en/products/servers/Pages/sbs_overview.aspx
http://www.techrepublic.com/blog/10things/10-things-you-should-know-about-microsoft-small-business-server-2011/2339
http://download.microsoft.com/download/4/5/C/45CD1DC6-9204-44DD-999B-24B50A9144B6/SBS%202011_Licensing_FAQ.pdf
http://blog.mpecsinc.ca/2010/12/sbs-2011-setup-guide-v100.html
SBS Console → Getting Started Tasks → Add a Trusted Certificate → I want to buy a certificate
If you want to buy a Wildcard Certificate, change 'remote.yourdomain.com' to '*.yourdomain.com'.