you probably didn't solve all the puzzles
where cant you find one? its about everywhere
you cant buy them you have to find them
it came out in 2003 but i cant find it
you cant, you must get it from a trade or cheating,hacking,or glitching
you cant get to sinnoh in heart gold, but you can find the gym leaders from sinnoh.
you cant use heart gold poke transfer
Google it. if you cant find it on google try looking in a library for a song book
no you cant because the police will come and kill you.
you cant he's only in heart gold vulpix is there instead of growlithe
you have to connect ur ipod for the devices to come out.
It really matters what heart problem you have unfortuanly i cant answer the question without knowing what condition you have free to re-ask with more information and i will try to find and answer it. sorry i cant be more help.
By 8 weeks there should be a heart beat, but just make sue you are 8 weeks along.