I have an explosion tutorial on my site:
mapage.noos.fr/samuelLK/Tutorials/Explosion/Tutorial.html
As for making the object explode, you should get the CrackIt plugin:
http://f23.aaacafe.ne.jp/~fisjunk/pl...eler&version=7
To crack the object up.
And C4:
http://www.informatik.hu-berlin.de/~goetsch/C4/
To shatter the cracked up object.
Hope this helps.