Weddingbee boards

We have a problem with our band. I don't know what to do. FH HAD to have a live band for the wedding, it was one of the top five things we had to have for the wedding on his list. While I was MIA in Chicago for work last fall, he picked a band with our wedding coordinator and signed the contract. He picked the MightyNish Band, check them out here: <font color="#669922">http://www.mightynishband.com/</font>. Once I got back into the planning mode, we started discussing the timeline, activities, etc and I finally looked at the contract. The contract says that they'll start at or about 5:30 pm. The problem was that our cocktail hour was going to take place at 5 pm. I kept asking him to call them and get the time worked out and he kept telling me it was fine, they're easy to work with, no problem. He still has not talked to them about it. Yesterday, he decided he'd rather not push them for the 5 pm time, I don't know why, he's being weird.
So here's my problem, I already have my invitations and they say that the ceremony is going to start at 6 pm. These are our options:
1. Have the cocktail hour at 5 pm still and use an ipod/canned music for that period.
2. Have the ceremony at 5:30, Cocktails 6 to 7 with the band playing - this pushes my schedule around and I'll have to put a correction in the invitations - which may confuse people, but may be fine too. (He thought we should just WRITE the new time on the invitations - gasp!)
What would you do?

My perfect timeline would be to do the cocktail hour after the ceremony, it was his idea to do it before and so that's why I ordered the invitations that way.  So, yes, it was suppossed to be 5-6 cocktails, 6 ceremony, 6:30 reception (dinner and dancing).

I wasn't exactly thrilled with having the cocktail hour before the ceremony, but was fine with it and ordered the invitations that way and created a whole schedule based on that.  In some ways, I'd rather have the cocktails after, but do you think it'd be too confusing to insert a correction?

I tried working with the band myself, but because I didn't sign the contract they needed to work with him, that's why I left it on his To-do.  Even if he just called them and gave me permission to work with them on his behalf, they might talk to me, but he hasn't done that either.  Frustrating!

I've attached the card I'm thinking of including

Are there any women who work with the band? a coordinator or scheduler perhaps? A woman who had planned a wedding would likely be willing to work with you if she understood that you were the bride.  Just an idea.

Not that I know of the band is all men.  I have a wedding coordinator, she's the one that helped the mr find the band, maybe I could sic her on them.