Adding Additional User Meta Fields

Loving the new site, and 1.5 (although i have been using the 1.5Beta for some time)
I'm just wondering about manually adding new user Meta Fields/Info that has been taken from a New User Registration form?

As an example, in the Registration form I a Company Name: field, I have created the "User Meta" in the User Registration settings. I would now like to display this info.

Useing Justin Tadlock's "Adding and using custom user profile fields" (http://justintadlock.com/archives/2009/09/10/adding-and-using-custom-user-profile-fields) code

add_action( 'show_user_profile', 'my_show_extra_profile_fields' );
add_action( 'edit_user_profile', 'my_show_extra_profile_fields' );

function my_show_extra_profile_fields( $user ) { ?>

	<h3>Extra profile information</h3>

	<table class="form-table">

		<tr>
			<th><label for="twitter">Twitter</label></th>

			<td>
				<input type="text" name="twitter" id="twitter" value="<?php echo esc_attr( get_the_author_meta( 'twitter', $user->ID ) ); ?>" class="regular-text" /><br />
				<span class="description">Please enter your Twitter username.</span>
			</td>
		</tr>

	</table>
<?php }

I can add entry fields, but how would I populate the field with the registered users Meta?

Can anyone help? Have I been clear enough?

Thanks

I'm utilizing these techniques as well, but no luck. I have had over 140 people register through my site and just realized that the custom meta data is not being attached to the user. For example I have a user meta field called 'weight' so in the user registration add-on I created an 'Add Custom' field and called it 'weight' then selected the form field I wanted to populate it with.

From what I can tell this is the proper method. I also know that when a user goes to their profile and puts the information in there it saves it perfectly fine. So I know with Gravity Forms not being in the picture the custom user meta is functioning as designed and as intended. However, the registration for I have that allows users to put that information in at the beginning is not functioning to get me that information into their profiles.

Any ideas?

Where is the field name value (custom meta name ) set when creating a registration form using GF?

get_the_author_meta('team_name', $user->ID)

In this example where do I set team_name to match with the code I'm adding in my function.php file.