Can't speak to the main but should be a similar process just different lines.
To unfurl the jib you have to release the furling line, decide which side of the boat you want the jib on, and then pull on the sheet on that side. The furling line is the one that runs from the drum at the bottom of the forestay back to the cockpit. It usually runs along the toe-rail and is cleated near the cockpit. This needs to be uncleated to unfurl the jib.
To furl it all you need to do is free up the sheet from the winch then pull on the furling line while maintain light tension on the jib sheet. Continue to furl till you get the sheet to wrap around the forestay at least once.
To unfurl the main you need to free up the shaft that it is rolled up on then pull the outhaul. furling is just freeing up the outhaul then pulling on the furling line.
FWIW, if this is your first boat you might want to consider having at least one crew that knows what they are doing with you the first couple of times you go out. If you are having trouble just getting the sail up I'm a little concerned that a 41' boat may be a little much to handle as a first attempt.
Ask around the marina for knowledgeable crew and let them know that you need someone who knows his stuff. Most crew will assume that YOU know how to handle your boat and you could end up in a blind leading the blind situation.
Good luck