UCSB enrollment question

<p>Hi, I am a transfer student from community college who got admitted to UCSB this yr for fall 2012 and I was wondering if it is possible for me to enroll only but not actually take any classes at UCSB yet.
For example, I am currently at Mt.SAC taking class and I also want to keep my admission to UCSB for maybe another semester or so. Do I just pay for SIR ? or there is a form that I need to fill out at UCSB?</p>