If you look under the Basic Techniques--More section of the videos, there are different ways to pick up stitches and fix mistakes. I like finding the destination row, which is easiest when you have a color stripe to help keep track of rows.
Another way is to unravel and insert your needle one stitch at a time as the yarn pops out. When I have reinserted my needle after frogging (frogging is ripping out rows--called frogging because of "rip-it, rip-it") I generally don't worry if I get the stitch on twisted or not, as long as it's on. I can always untwist it if if's on wrong as I'm knitting the next row.
Once you get your stitches back on the needle, then you can count how many rows you still have knitted to see where you are.