Hi Superbiff,
You can set visible=false in the InstantASP:CheckBox tag of the logoncontrol.ascx as shown below:
<InstantASP:CheckBox id="ckbRememberMe" visible=false checked=false Text="LogonControl_RememberMe" runat="server"/>
IASP_IsActive (expiry ~5.5 hours) on the main forum page IF_LastVisit (expiry ~1 year) when clicking the Control Panel
etc