Hi there, welcome!
You can find the sodium information if you go to the Reports tab, then the Nutrition tab. The results present as a bar graph, but if you look at the bottom right, you have the option to present it in a table. If you select that, sodium appears in the table.
I can't really comment on the strange levels, mitch; maybe one of the techs or other mods can chime in.
"If you drop an egg, you don't say, 'Oh, shoot' and drop the other 11, do you?"
-Source unknown, but obviously brilliant
Reached goal 4/16/2010...but kind of afraid to look these days