Having Problem's With Yoshi's Island DS On My DS Lite!!!

It plays but there are no storkstops!!!(I can't play it w/out the storkstops). I've tried the USA & English version roms many times. Can't play either. Plus I bought a Yoshi's Island cartridge & still no storkstops. What do I do? That is my favorite game.

What is a storkstop? I played Yoshi's Island DS without any problems... and I have no idea what a storkstop is.Edit:
http://www.mariowiki.com/Stork_StopThat explains it all.

Yeah I know what it is but the problem is I can't see them when I get to the level that has them! So I can't switch babies! What am I supposed to do? I have that problem w/the roms & the original cartridge.

They aren't there until you replay the level.

the storyline follows that Yoshi is separated from the other babies and the Stork, and is forced to use only one baby, meaning any Stork Stops in the level do not appear until they are replayed again and Yoshi is reunited with the others.

i think what cowcat means is that when she trys to progress and the game wont show them at all in that case unless this post has a post that will give the answer consider doin a through search on google if ya want to play the game i finished it so if there are any probs ok

And I am just trying to confirm whether or not he/she is at the proper point for the stops to actually appear, since the walkthroughs say they do not appear until after you beat the levels and come back to them at a later point. Apparently everything cannot be done the first pass through the level.