Nios II modelsim tutorial

I am trying to learn how to simulate a Nios II with modelsim-altera. I am following altera's AN-351-1.2 document. It references

<nios ii eds install directory>/examples/<vhdl or verilog>/

niosii_stratixii_2s60/standard

I found the /examples/vhdl and /examples/verilog directories but neither contains the niosII_stratixII_2s60 folder. Does anyone know where I can find those files?

Alternatively, does anyone know of a newer Nios II modelsim-altera simulation tutorial?