I have site installed using WP3.3. I want to make it a WPmu site. So I read in the Codex
Network Admin Link Location
The Network Admin Link has moved with each major release of WordPress, as this is still a work in progress. Depending on which version of WordPress you are using, the link can be found in the following locations:
3.0 - A menu called Super Admin
3.1 - On the admin header by "Howdy, YOURNAME."
3.2 - On the admin header, as a drop-down under "Howdy, YOURNAME."
3.3 - On the admin bar, as a drop-down under your "My Sites"
But there is no such link as "My Sites" anywhere in my 3.3 Dashboard. They do not actually say this is in the Dashboard. They do not say at all what screen one is one. There is no such screen in WP as "admin." Obviously there is at least one assumption being made as to what the reader of these "instructions" knows or has already done prior to this point - and perhaps more than one assumption.
Where will I find a non-assuming set of steps for installing MultiUser?