Hi,
I hope, that you had some relaxing time during X-Mas. For the module Hardware-Software-CoDesign we have updated the Download-Area. For those, who like to use the Linux based enviroment, we made a copy of the Quartus and NIOS Dev-Tools available. The entire Download-Area can be found here.
If you plan to use the NIOS II, it may be necessary to download the ECLIPSE-Enviroment too. Please follow the wiki by Intel.