In previous versions of dolphin some of the code would get stripped automatically if you were using tiny_mce editor, as to sort of prevent certain code from being added by a member. I know you can add more than what you used but I haven't tried a flash related embed code in a while to see if it strip some of the code or not. The sollution used to be to just manually insert it into the database, or to make tiny_mce not strip the code you were wanting to post. But in newer dolphin 6.1x it seems less see more code is stripped.

Your post doesn't specifically say where you are trying to post this, such as in a blog, forum, profile page, or into something like where the original flash promo would be or other.

You obviously have to have your flash file uploaded to your site somewhere. Doesn't really matter but it must be on your host/server/account somewhere or another site that allows linking.

So basically your file name is 960X274STARS.swf which would imply that it should be in your main directory or maybe the directory you are putting this code such as yoursite.com/960X274STARS.swf

If you are putting this code in the promo area say page_1.html then it would seem like the .swf should be uploaded to yoursite.com/templates/tmpl_uni/960X274STARS.swf because that's where you maybe are inserting the code for example.

Otherwise sometimes ../960X274STARS.swf
or maybe even ../../960X274STARS.swf

You might also try being specific with the code too like:
http://www.yoursite.com/960X274STARS.swf
http://www.yoursite.com/myflash/960X274STARS.swf
or other for example.

So if one knew what page you were trying to put this flash/.swf and where you actually have it uploaded to might be helpful.