It takes a while for MSN to list you at first. They also spider me MUCH more than any other spiders. I think they like to do a complete job. You will notice listings soon.. Don't worry.
isn't too much spidering a waste of bandwidth specially if your site is not getting updated too often ? may be you want to modify your robots.txt file
I don't mind the wasted bandwidth, not yet at least. So they can keep on a-coming. BTW I get thousands a month now From at least 15 dif spiders.
i guess when you start getting lots of people to your website you will start worrying about bandwidth
Being crawled 147 times really doesn't mean very much. I have a site that has been crawled 30k times by google this month and it hasn't noticeably effected my rankings.
I bet if you check, you'll find that the robots just look at a few of your pages each time they visit, which would mean that they have to visit a lot of times before they find all your pages.