I don't have a clue about genotypes either, but I find that getting some basic results is pretty doable for anyone. In case it might be of help, here's a quick "how to":
Once you log in, click on "My Results" (on the top of the screen) then select "Health Risks". This will display the list of all the diseases they know and how you score in each one of them. The first ones they show you are the ones you have an "Elevated risk" (higher than average), then they show you the "Decreased risk" ones and finally the ones the "Typical risk". For each disease (i.e., each line), they show you the following info:
1. Disease name (e.g., Type 2 Diabetes).
2. Confidence (e.g., 4 stars). This is how sure they are about their results. I only look at the ones with 4 starts (which are the more "sure" ones) and ignore the 3-star ones or less.
3. Your risk (e.g., 31.1%). This shows you the probability of you ever catching that disease, given the genes you have. In other words, if 100 people had the same genes as you, 31.1 of them would get this disease during their life. Note that this doesn't mean you'll ever have catch it. Maybe you are part of those 31.1 people; maybe you are part of the remaining 58.9 people. It's just a probability that reflects how often people with similar genes as you have cougth that disease.
4. Avg Risk (eg, 25.7%) is the probability of catching this disease for the average person (I'm not sure if it's the average for all persons in this planet or just for those that are clients of 23andMe - anyway, it means the probability for the average person on the street).
5. Compared to average. This is how your probability compares to the average. If your risk for Type 2 Diabetes is 31.1% (like mine) and the average risk for Type 2 Diabetes is 25.7%, then your risk of catching Type 2 Diabetes is 1.21 (=31.1/25.7) times the average risk. In other words, you are 1.21 times more sensitive to Type 2 Diabetes than an average person. Any number bigger than 1 means that you are more susceptible to catch a disease; any number smaller than one means you are less susceptible to catch it. If the number is exactly 1, it means you're stop on the average.
What I find interesting about it, is not so much the probability of you getting a given disease (which in many cases is tiny anyway - and there's no point in worrying about some 0.25% probability of getting some sort of cancer anyway), but rather finding out the list of diseases that you are more vulnerable than the average person and asking yourself - are they somewhat related? In my case, they all seem to involve some sort of inflammation and focus around my GI track... which leads me to believe that I have some genetic weakness there.
Hope this helps,
P.S. Sometimes they don't show you the results for some diseases (e.g., "are you sure you really want to know this?" type of situations) and you have to click "yes" a number of times for them to show them to you. I just clicked "yes" all those times and now my list shows everything.