Congratulations on the webmaster tools thingy, I hope live search will get some more share of the SE searches market. But, let's get to the nitty gritty.
I noticed that MSNBOT does a pretty well job of indexing my site, but in the webmaster tools it show:
3 pages indexed only! What does it do with the rest of the indexed pages?

Here's a copy/past from one of bot's visits:
/robots.txt
Http Code: 200 Date: Feb 11 07:49:40 Http Version: HTTP/1.1 Size in Bytes: 127
Referer: -
Agent: msnbot/1.1 (+http://search.msn.com/msnbot.htm)
/index.htm
Http Code: 200 Date: Feb 11 07:49:41 Http Version: HTTP/1.1 Size in Bytes: 11436
Referer: -
Agent: msnbot/1.1 (+http://search.msn.com/msnbot.htm)
/hosting_article11.htm
Http Code: 200 Date: Feb 11 10:14:25 Http Version: HTTP/1.1 Size in Bytes: 13035
Referer: -
Agent: msnbot/1.1 (+http://search.msn.com/msnbot.htm)
/hosting_article34.htm
Http Code: 200 Date: Feb 11 11:06:16 Http Version: HTTP/1.1 Size in Bytes: 14571
Referer: -
Agent: msnbot/1.1 (+http://search.msn.com/msnbot.htm)
/hosting_article23.htm
Http Code: 200 Date: Feb 11 11:06:18 Http Version: HTTP/1.1 Size in Bytes: 9701
Referer: -
Agent: msnbot/1.1 (+http://search.msn.com/msnbot.htm)
As you can see, only in this visit, the bot indexed more than 3 pages ...