There is another thread, the Petco Baby betta thread, found here: http://www.bettafish.com/showthread....87438&page=169
As for babies I have 3, though one isn't so much a baby anymore, and while I'm maybe not an expert, I feel confident in caring for them :)
I would not suggest a 1 gallon tank as frequent water changes are necessary. Babies give off a growth stunting hormone, which in the wild is a defense mechanism, but in their own personal little home it backfires - so daily/every other day water changes are needed. A 1 gallon would need daily water changes, I have one in a 2 gallon (upgrading soon) and in an 8 day period he gets two 50% changes and two 100% changes.
Water does need to be warm, and preferably a constant temperature. I keep my babies' water at 82.
Feeding them can be tricky, as if you get them small enough they can't get a pellet in their mouth. A lot of people crush pellets for the babies - I prefer to use the New Life Spectrum small fish formula; it's the perfect size pellet for a baby. Live/frozen foods are also great if you have access to them. My boys get bloodworms once a week as a treat once they're big enough to eat them, you can also crush or cut up the bloodworms too for them.
They like to have places to hide - each of my boys, even the adults, have a cave and then either 1 large plant or two smaller plants depending on tank size. I try to get an even amount of places to hide and also give them enough swimming room.
As for the controversy - I completely understand. For a newbie betta owner, if they just walk in and grab a baby betta and a lil glass bowl chances are the baby probably won't live very long. But then there are others who do their research first and who have great luck with their babies. My oldest one I've had for almost 4 months and while I think I stunted his growth (from being in a 1 gallon with only 2 water changes a week) he's doing very well. I hope to have him until he's a ripe old age, same with my other 2 babies.
As for gender - if they're clear/see through it's pretty easy to tell because either they have ovaries or they don't lol
Hop on over to the baby betta thread I linked up above and there are many people who can help you out and answer any questions you might have :) Babies really are so much fun to have and to watch them grow!