Hi Anthony
If you load the Wall template it’s certain to break the look and feel of your current site, as the template is not a standard one, it’s responsive and does not use the JAT3 system. If you buy and load the JA Wall full quickstart then import your stuff to that install you may get something happening. A change of template usually only gives you that colour, css styling etc. the newer template still shows the old sites module positions etc.
If you really are that keen and ask me nicely :), I’m willing to load wall template which I have as a buyer into a local install of nex and send you screen shots etc.
Cheers Shannon