AMS, you should be able to print out your "planned allowances" which itemise everything you should earn, unless there are changes - and there WILL BE. Rosters on short haul can be very fluid and you have to go with the flow. One 2-3 day trip off standby or available can knock you off other trips, which can be quite frustrating.
With aircraft type, there is no real pattern to it, its just randomly allocated until you start bidding.
Have fun, you'll love it.