Calling all Catholic Brides and Newlyweds--NEED HELP ASAP PLEASE

Trying to figure out the program two weeks before the wedding...my fh and i have never been to a catholic wedding and are clueless PLEASE HELP:

If you are already married can you please list your processional for me!

Does the best man always stand at the altar with the groom or can he escort someone down the aisle?

Who walks in first? Is it your granparents? if so, who escorts them?

Who escorts the brides mother? if it is her sons, what do you do if they are also groomsmen and walking with bridesmaids as well?

Who escorts the groom's mother? Does she walk down the aisle with his dad? if not, what does his dad do?

PLEASE HELP

here's my ceremony section of the program - but keep in mind I do not have communion:

The Wedding Ceremony
PROCESSIONAL
WELCOMING REMARKS & OPENING PRAYER
Reverend Canon Leonard F. Badia

OLD TESTAMENT READING
Genesis 1:26-28, 31a
Read by (name)

RESPONSORIAL PSALM
“The earth is full of the goodness of the Lord”.

NEW TESTAMENT READING
Philippians’ 4:4-9
Read by (name)

GOSPEL
Mark 10: 6-9

HOMILY
MARRIAGE VOWS
BLESSING AND EXCHANGE OF RINGS
PRAYER OF THE FAITHFUL
NUPTIAL BLESSING
UNITY CANDLE CEREMONY
FINAL BLESSING
RECESSIONAL

don't worry about the rest - you will figure all of that out at the rehearsal!!!

As far as the order goes generally it works like this:
Grandparents - Groom
Grandparents - Bride
Parents - Groom
Mother of the Bride
Bridesmaids & Groomsmen
Flowergirl & Ring Barer
Maid or Matron of Honor
Bride
The kids are often switched around to accomodate everyone. My flowergirls were so excited I had them walk in before my bridesmaids
Groomsmen can usher Grandparents and Parents in and double back for Bridesmaids. The Best Man usually stands up front with Groom

I dont think there are any hard and fast rules on this. Do what works for your group and makes you happy. You are the