My website <snip> not crawling by msnbot for a long time. anybody can help me? how can it be crawled??

MSN seems slower than the rest with their crawls.... if you know anyone who has a site that gets them there more often get a link from them

Also, if you feel that MSNBot is crawling your site too frequently, you can use the crawl delay directive in robots.txt. Please refer to the MSNBot support page for more information (http://search.msn.com/docs/siteowner.aspx?t=SEARCH_WEBMASTER_FAQ_MSNBotIndexi ng.htm)

Thnks for this information

Even I obtained 4-5 backlinks from PR1 and PR 2 sites, its not crawling.

You can go here (http://webmaster.live.com/), you'll find all the tools you need to make MSN search reach your site.