Loading a simple Qt Designer form in to Pyside

I create a simple form in Qt designer and am trying to load it in to a Qt application I'm creating with PySide but without much luck.

Here's the generated code from `pyside-uic':

# -*- coding: utf-8 -*-

# Form implementation generated from reading ui file 'clientEditorForm.ui'
#
# Created: Tue Nov  3 23:46:41 2009
#      by: PySide uic UI code generator
#
# WARNING! All changes made in this file will be lost!

from PySide import QtCore, QtGui

class Ui_clientEditorForm(object):
    def setupUi(self, clientEditorForm):
        clientEditorForm.setObjectName("clientEditorForm")
        clientEditorForm.resize(575, 446)
        self.horizontalLayout_3 = QtGui.QHBoxLayout(clientEditorForm)
        self.horizontalLayout_3.setObjectName("horizontalLayout_3")
        self.splitter = QtGui.QSplitter(clientEditorForm)
        self.splitter.setOrientation(QtCore.Qt.Horizontal)
        self.splitter.setObjectName("splitter")
        self.layoutWidget = QtGui.QWidget(self.splitter)
        self.layoutWidget.setObjectName("layoutWidget")
        self.verticalLayout = QtGui.QVBoxLayout(self.layoutWidget)
        self.verticalLayout.setObjectName("verticalLayout")
        self.horizontalLayout_2 = QtGui.QHBoxLayout()
        self.horizontalLayout_2.setObjectName("horizontalLayout_2")
        self.searchLabel = QtGui.QLabel(self.layoutWidget)
        self.searchLabel.setObjectName("searchLabel")
        self.horizontalLayout_2.addWidget(self.searchLabel)
        self.searchEdit = QtGui.QLineEdit(self.layoutWidget)
        self.searchEdit.setObjectName("searchEdit")
        self.horizontalLayout_2.addWidget(self.searchEdit)
        self.clearButton = QtGui.QPushButton(self.layoutWidget)
        self.clearButton.setObjectName("clearButton")
        self.horizontalLayout_2.addWidget(self.clearButton)
        self.verticalLayout.addLayout(self.horizontalLayout_2)
        self.clientListView = QtGui.QListView(self.layoutWidget)
        sizePolicy = QtGui.QSiz