Although I am not a probationer, I started teaching in Scotland less than two years ago, so I thought I would mention what I would have liked to have happened when I started at my school.
It is important to me to be clear on what the discipline policy is in the school and who to refer to when there is a problem, particularly if teaching can not continue.
It is nice to meet the head teacher formally as he is, after all, the new boss!
An introduction to the rest of the staff, at a weekly staff meeting, for instance gives recognition but it is very handy to have a staff handbook with all names, policies, forms, phone numbers, etc. in.
More importantly, a weekly time slot to discuss curriculum delivery issues and pastoral issues, where the focus of the slot is clear and does not deviate.
I could go on for ever, but these are things that stick in my mind.
I would have found it really helpful to have 10 minutes at the end of each day just to check in/ find out where to get information, etc. for the first 2-4 weeks.