UKCAT and UCAS

Hey guys,

I need a few doubts cleared.
I am not sure whether this is the right section so feel free to move it.

I am going to take the UKCAT soon, and in the website it mention that the results will be sent to Universities that I apply to.

I am taking the UKCAT under the name that is on my passport, but in my UCAS, my name is different, this is because I've taken my GCSE and A/levels under a different name.
When I say a different name, its not different like 'Bob' and 'john'...Its just the that the name is in different order.
i.e. : Robert Jackson Smith as opposed to Jackson Robert Smith
Will it cause too much trouble?
Will my UKCAT results still be sent of properly?
How are they sent of? I mean, how does the UKCAT know what is my UCAS account?

thanks in advance