HER: i had 5 bridesmaids too, i also had my mother and my ring barer walk down the aisle. the wedding van thing will take your bridal party to the end of the aisle, and park at the top of some steps, you will be totally out of the way until your ready to walk down yourself.(your hubby will not see you til you walk down as there are flowers/shrubbery type things either side of the steps)
this is the way it was done-
hubby was waiting with his best man at the gazebo; my mum and my brother (ring barer) walked down together, and then stood either side of my hubby then my 2 adult bridesmaids walked down seperatly
i had 3 young flower girls that all walked together, (the wedding planner will explain when everyone needs to start walking)
then my song started, and my uncle and i walked down the steps to the top of the aisle then to the gazebo together, where my mum was stood at the top of the steps at the gazebo to take my veil off my face and ''give me'' to my FI so to speak.
we had a rehersal the night before the wedding, as im sure you will too, and they will explain everything to you.
also, they tell you to have 5 songs to give them-
bridal party entrance
signing the register
exiting the gazebo
but, the signing the register took longer than our chosen song and they chose another one for us to play, they chose a lovley track very similar to what we had but i would suggest tht you pick 2 for them to play if you dont want them to chose another for you.
hope this helps, and anything else you need to know, just ask!