> Firstly, where amongst the files can I find the general pronunciation guide that the lesson spoke of? Secondly, is there a way to check the answers I got for my translations?

Hey there, Jacob. The pronunciation guides are in the section called "articles" (4th from top in the leftmost column). To check your answers, click on "solutions"; it's the link directly under "lessons".

http://notendur.hi.is/haukurth/norse/

There's another pronunciation guide at Old Norse Online:

http://www.utexas.edu/cola/centers/lrc/eieol/norol-1-X.html#Nor01_GP01