susan,
You have the older model which the only difference is the screw cam to hold the mirage drive where the newer 2010 models have the snap lock feature. The 2007 has the lever control twist & stow rudder where the newer 2010 models came with up/down pull ropes for the rudder. Other than that the revolutions are the same. I have two 2008 models with the same features as your 2007.
Sailing you would want to get the sail kit and sailing rudder the stock rudder is not big enough. The Turbo fins work great as daggerboard as you sail. You can use ST fins too and if you pedal more than sail I recommend the ST fins. Turbos take a bit more effort and not always worth the extra effort for what little additional speed you get in my opinion (much debate on that subject). I am going back to ST fins myself.
A blustery wind can turtle you (capsize) so I use the Sidekick Amas when I sail.
I keep them just above the water so as not to add drag (a valuable tip provided by Kepnutz here in the forum) but they are there if you keel over a bit too far giving you a chance to dump the sail staying upright. I only want to swim when I WANT to swim LOL. You do not need the Amas in a light wind but if you plan on sailing in 15+mph winds I recommend them. The sail is designed for light winds 10 mph or less but many people on the forum sail in higher winds.
There have been many solutions posted for furling and unfurling a sail to add some convenience to your sailing pleasure and you may want to check into the modifications.
I posted a very simplified version that works very well.
viewtopic.php?f=32&t=34749and this one by Stringy is lengthy with many options.
viewtopic.php?f=32&t=8455Sailing your revolution is a blast and you will have a great time doing it. You can get all sorts of tips and tricks here on the forum all you need do is ask.
Have Fun
Revo