Almost all three. It's missing three episodes. According to the wiki, said three episodes haven't aired on TV since 1999, so I guess that was to be expected.
Do you have more background information on those three episodes? It would be sad if they're permanently lost and not just hard to track down.
They appear to have only been aired briefly in the fall of 1999, (and possibly once or twice when season 1 was premiering in the fall of 1998, but I don’t know for sure about that). So to find them we’d need to track down Playhouse Disney recordings from October 1999, possibly November or December.
