For the vent window, make sure first that the latch is not loose in the glass. Then loosen the screw at the top of the glass, and move it around until it seats as well as it can in the rubber. Then take some silicone grease, and grease the rubber where it meets the glass at the bottom. This last hint came from someone long ago on the forum, and it helps much more than you'd expect.
For general wind noise, check whether the door is closing tight at the top. Hinge wear, and just general alteration of door shape over the years, can leave a gap at the top. You can realign the hinges, and realign the latch, if necessary, and if the top is still loose when the bottom is correct, you can pull the window frame inward a little. Just get into the seat, open the door a little, brace your knees against the door, and yank the top inward. Don't yank too hard.