1. The already knitted stitches are on the right hand needle. The yarn is attached to the last stitch you knitted on the right hand needle. It is not on the left needle except at the beginning of the row when you have not taken a new stitch as yet.
2. Some patterns indicate which side is the right side. Sometimes the purl side is the right side. If you knit every row, then both sides will look the same and there won't really be a right or wrong side. If you alternate by knitting one row and purling the next, then the pattern will tell you which side is the right side. Often the right side is the side facing you when you do the knit row. It all depends on what the pattern says.
3. I like to use a stitch counter when I am counting rows. You can also just keep track on a scrap of paper with hatch marks bundled in groups of five to keep track. You can count the rows already knit by counting the loops that make up the row, picking one stitch on the needle and counting down to the bottom edge.

Hope this helps.

There are lots of sites to help learn to knit. One is below. If you could just spend a few minutes with a knitter, I know it would help tremendously. Our Michaels has Sat. morning knitting classes for $12. Do you have something like that in your area?

I don't think I can answer all your questions, but as for the right side and wrong side of your work: If you are knitting every row that's called garter stitch and both sides look the same. If you K one row and P one row, that's called stockinette, and the right side is the smoother looking side.

Don't give up, keep working, and you really would benefit from just a wee bit of help from a knitter. Good luck!

Here is a link that might be useful: how to knit

"I understand that the knit row is the right side; but if you knit a row, purl a row, for example, you will have both kinds of rows on each side so I don't understand how one side can the "right side." also, with a scarf, is there a right and a wrong side?"
How are you understanding "each side" - do you mean what is facing you in your left hand and your right hand?
Look at "right side" the same as you would look at a piece of fabric - the "right side" is the outside of the piece and the "wrong side" is the inside of the piece. As Sheilajoyce said, either the knit or purl side could be the outside of your garment, depending on the design of the piece. Scarfs very often are done in a pattern that ends up with no clear "right" side, but there are some with a definite right and wrong side.
Hope this helps.

Ummmm ....
1. I knit Continental so my knitting is on the right needle (finished knitting) but my work (is this what you mean?) tends to fall down straight and should be in back (not facing you) the needle). The yarn should be stretching to the left of the work (work should be to the new yarn's right) I guess opposite for English knitting.

2.If you knit, purl, knit, one stitch at a time (not one row)then yes both sides will be the right side. If both sides look the same there is not wrong side. If one side looks different there is a right and a wrong side. Generally with say stockinette (knit one row purl another) the knit side is the "right" side.

3.As far as counting rows in say stockinette look to the right "knitted" side. You know how it looks like braids? Every "V" of the braid is a new row.
Does this help? :)