Jquery Keyup Event Is Not Working?

I am working on making a Sharepoint 2007 app look more modern. I am using jQuery actively for that and even though I am no expert, I have learnt enough to know my ways around. Untill I faced this issue today. Here are the bits:

$(document).ready(function() {
alert('doc ready');
var textBox1 = $("#myTest");
alert(textBox1);
textBox1.keyup(function() {
alert('key UP');
});
textBox1.live("keyup", function() {
alert('keykeykey up live');
});
});

Server-generated html:

<input name="ctl00$Spwebpartmanager1$g_1f2d211c_a0c3_490d_8890_028afd098cac$ctl00$myTest" type="password" id="ctl00_Spwebpartmanager1_g_1f2d211c_a0c3_490d_8890_028afd098cac_ctl00_myTest" class="gh" />

So the document ready handler fires, the textbox1 variable is not null, but none of the eventhandlers to handle the keyup event ever fire?