Thank you Avatar and OMG.
OMGFPGAS your explanation is clear, giving me a whole picture. I have been introduced to Modelsim and Leonardo Spectrum in lectures but couldn't seem to fit in the other tools. At least now I can figure out the purpose of the tools and decide that I don't need Nios EDS.
Avatar, I tried downloading the free online training but the internet line was so unstable that I couldn't even download the zip file. Either that or the traffic going to those pages.
Determination or foolish I don't know, but I will solve it. :-)
Can anyone point me to the direction of newbie discussion forums?
Thanks.