I have posted a page
That's a scary collection of weeds taht you're calling a lawn. You didn't say what part of the country you live in so it's hard to tell you how to proceed right now. But, you need several applications of a broad-leaf weed killer. I like the Bonide product, but they are probably about the same. This is going to leave you with a high percent of dirt instead of the weeds. So, you have to plan reseeding. In New England there is not enough time to do that this Spring, so you will have to do it in the Fall. September/October is good because it's easy to keep the new seed damp, the key to growing grass.
Sorry about that...I live in Wilmington, NC
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