Hi Greg. Welcome Aboard!
Like you, I dreamed for years about sailing, read lots of books, but never really did anything else. For my 40th birthday, my wife presented me with a week long live-aboard sailing lesson (for two!) off of Vancouver Island. She didn't have much interest in sailing and came along just for the adventure, but by our third day out, she was discussing what size our new boat should be and had picked out the name.
This week long lesson gave us the confidence we needed to buy a boat and get it in the water. Of course, that doesn't mean it all went smoothly. So take some lessons if and when they're available, but remember that sailing, (like life

) is mostly learned by trial and error. A good book and a manual from over on the left side of this page will help you with the rigging. In fact, these manuals will actually teach you the basics of sailing as well.
Read through it several times while you sit in the cockpit and you'll probably figure it out yourself. If not, post some specific questions here, and I guarantee everyone here will pitch in get that boat rigged and wet!
You can practice raising the sail in the driveway on a calm day to avoid the embarassment of learning everything at the dock, but the feeling is inevitable anyway. The first time in is always nerve wracking and you'll forget something. But if it's like a lot of docks, there probably won't be many sailers there anyway, so the onlookers won't have a clue what you're doing either. Just do it with authority and they'll be impressed. And if there are sailers around, don't be surprised it they come over to give you a hand.
Good Luck!