Problems with "My first FPGA tutorial"

Hiya, I am quite new to FPGA's and VHDL aswell, and unfortunately don't have an answer to your question.

My Quartus II 10.0 SP1 web edition doesn't have the lpm_mux in the the megawizard library either, by the looks of it there may be a library containing more megafunctions that needs to be downloaded and installed...

One thing I will say that I have found from my own experience that it is better to create your designs using VHDL code rather than using the block diagram files..... some people may disagree but I found it best to use the megawizard to instantiate more complicated things such as PLLs etc, but I tended to have less problems and a better understanding of what I was doing when the majority of the design I was in VHDL that I had written rather than trying to use the schematic editor...

Sorry if my post is not that helpful... but i thought i'd share my own experience...