I checked at the Adobe site and came to know that .flv file needs to be registered at MIME type at Web server. I am trying to sort out the issue with my webhosting compnay.
Again the .swf file, the html file and the .flv files are in the same folder, also the same works fine if I play the file at my local webserver i.e //localhost.
My test files are at http://scitrs.com/two.html
, you can see the path is same for each file.
Again thanks for you support.