Assuming that you have everything setup properly on the controller and the AP's Profile is complete (all the various configuration settings have been setup), you need to then ensure that this 7502 Profile has actually been applied to the AP. This is normally done using the AutoProvisioning Policy. Or, you can manually specify which AP Profile an AP is assigned to. (In the GUI, this would be in the device's "Basic" section - under the label "Profile")
At that point, connected clients will be have their traffic tagged as they exit the 7502. From there, you need to have the 7502 properly connected with a switch (trunked, tagged VLANs, etc). From there, the VLAN traffic needs to be able to reach the default gateway, and ultimately the Internet connection.
So not sure where you are in this whole process.