ok ok I know everyone is going to say you can't get Mew and bash me off, but if anyone got yellow and got free time, could you try this Mew code and see if it works? A Moderator from anther forum said he tried it and it worked for him.
http://s1.cgi.gamefaqs.com/boards/ge...&topic=7595515 is for the code.

http://www.math.miami.edu/~jam/azure...c;f=7;t=001568 & http://4309.rapidforum.com/topic=101184907700 are both talking about it.

[EDIT]: Here's an easy to read walkthrough, with pictures and stuff: http://white-cat.virtualave.net/pfiles/catchmew.htm