No worries Tyler,

""""""""""""""""""""Problem 1:
I have noticed that when editing certain spline objects (closed circles), the centre point for them disappears making it very difficult to align things to? Is this normal?""""""""""""""

When you make initial shapes like "circles and squares" etc, they are a special kind of analytical geometry, like an "arc" for instance, which has a "center snap"....

When/if you deform or modify it, it can become a regular bspline, which doesn't have that special snap. So we use the "bounding box" of a deformed object...

Hope that helps to understand.