RuddsD - I did the online assessment late 2013 & there was no spatial assessment. Only some maths, a code checking test and some general multiple choice questions. There may have been one or two other elements, but there was definitely no spatial stuff in my online assessment.
Having said that, I have my assessment day next week & there is going to be some spatial reasoning as part of the assessment. I've been practicing so hopefully won't trip me up too much!
Best of luck mate!