Drew, something is definitely not right in the data you're assigning there.
I've taken your example recipe from the archive (I think it's called "Porky Steak Beak"), and got the following in my quick example:
207 calories per serving (not 13 million :-))
68 calories from fat
12% total fat
Total carbs 10%
As with all nutrition analysis software, the links you choose for somewhat arbitrarily written ingredient lines are a matter of judgement.
We agree that when you get a result with over a million calories, something is obviously pretty wrong there in the inputs; my guess is that you've got some error in either the serving size, the assignment, or the gram weight of one or more ingredients.
Double check each ingredient line. If you can report back as to exactly which assignments (and how many grams) you are assigning, that'd help us reproduce this on our side and help out.
For example, here are the links I chose:
1 lb Pork Steak - 1 lb "PORK, CURED, HAM, STEAK, BNLESS, EX LN, UNHTD" (though the author may have meant something else by this -- I chose this just because I was in a bit of a hurry on the calculation, just as an example.)
15 ox can Stewed Tomatoes - TOMATOES, CRUSHED, CANNED
1/2 Package French cut green beans - BEANS, SNAP, GREEN, RAW
1/2 cup dugers salsa - SAUCE, LA VICTORIA, GRN SALSA JALAPENA
1 teaspoon chicken base - SOUP, CHICK BROTH OR BOUILLON, DHYD< DRY
2 teaspoons olive oil - OIL, OLIVE, SALAD OR COOKING
As with all nutrition analysis software, the nutritional amounts that you get are entirely dependent upon how you assign the ingredient lines in the recipe.
BigOven gives you the tools to calculate this, but you must assign the ingredient lines and amounts, and you must carefully check the associations its making and/or you tell it to make.
That's because BigOven was deliberately designed to let you analyze recipes with ingredient lines written in an arbitrary, flexible way (because of our web tie-in -- that is, so you can access and import any of the 170,000+ recipes posted by all kinds of people around the world, in all kinds of different ways). We reasoned that a significant fraction of folks don't want nutrition information, and wouldn't want to be bogged down by writing ingredients in a straightjacket-kind of way.
What were your specific linkings? I'd be happy to try it here.