Valid options for location are:
-
leftpane
-
rightpane
-
contentpane
-
altcontent1
-
altcontent2
altcontent1 is the top pane and altcontent2 is the bottom
I don't recommend setting the cache to 360 unless you have a real good reason, make it 0. Cache uses server memory and that is usually the most scarce resource in shared hosting. I see you copied that from the default content file, I will remove that from the default content template, I had forgotten it was there and it led you to do the same.
I noticed our default also had center as the location, that is also a mistake but it works because if anything entered there is an unknown value it will put it in the center.
After reviewing the code for the initial content creation, I see it has never been updated to support the altcontent1 and altcontent2 panes so I will fix that for the next release, that is why it is not working for you.
Hope it helps,
Joe