http://wiki.guildwars.com/wiki/List_...tfall_missions should get you back on track.
For a few general points, until you have access to enough skills for decent hero builds, henchman are better. I started from scratch on a new account a while back and ended up focusing on skill hunting to get a strong team build together, when I was around 5 missions away from finishing Nightfall. I generally run 7H Discordway, and variants for different party sizes, with: AP caller Elementalist w/ Fire as my element, an Any/Rt SoS spec, or a Searing Flames nuker with Mes secondary. I also have a farming spec I used to use a lot, but not anymore since I leveled a Dervish for farming.
Using a Rt primary is almost wasteful. SoS specs don't need to use Rt as a primary and it's the only really good player spec for Rts right now, so you're really limiting your options by taking Rt primary. Not to say Rt is bad, but using it as a secondary is sufficient. Playing it as a primary also forces you to forgo starting in Nightfall, which is the best place for a new player to start and you won't find many that argue against that. If you're intent on making use of Rt in player groups, then it's a different story, but the current meta is all about 7H these days or gettting runs/clears, unfortunately.
If you want to play melee, go with Dervish or Warrior. They both can build for very high AoE spike damage, while not losing out on much single target either. They're wanted in speed clear player groups for the AoE spiking, but that's probably something you might not get into due to the requirements. They also have some of the best solo farming builds, for if you just wanna farm and buy things for HoM pts.