Megan is totally right - everything will work out! I can understand being intimidated by this place since I was too at first, but if you just stick around and explore the board you'll settle in fairly quickly. Welcome! (and hey, an unknown type Pokemon has appeared. Better get my Master Ball ready! :D)
Liking all the generations instantly makes you that much more awesome. Pokemon is too awesome to have generations you dislike.. even if some people don't like some of the regions or Pokemon, it's still an awesome franchise in the end, right? The third gen is of course an amazing gen though, and one of my favorites as well. n~n I spent about 300 hours on Sapphire and probably around that much again when Emerald came out. Which starter did you piiiick?! Brownie points if it was Treecko.
But anyway, just kick back and enjoy your stay. Like said, you can pop into the Pokemon gaming discussion boards and discuss your favorite games, which includes the ever-so-awesome Advance Generation section (where you can discuss FR/LG as well as R/S/E). If you ever need anything, just private message one of the staff or post in the Questions & Feedback section right above The Welcome Lounge.
Really, don't be scared to contact one of us. We'd love to help! ^^ See you around and great meeting you!