Custom Form fields markup (Templates)

Hi,

There is a way to customize the markup of the form fields?
Right now is like this:

<p id="first_name-p">
	<label id="first_name-label" for="first_name">*First Name<br>
		<input type="text" name="first_name" id="first_name" class="input" value="">
	</label>
</p>

I would use <li> instead of <p> and also change the <label> and <input> position.

http://wordpress.org/plugins/register-plus-redux/