I've used dw3... but I assume some/most is similar...
I can't think of the name of the certain tool bar I am referring to....
I think it's the 'Property Window'... Use that to set the height, width, and any other necessary properties of the Flash...
In order to get the html page to show when the Flash ends, you'll have to insert some ActionScripting into the last frame of your Flash movie...
You're going to want something like...
getURL("URL",_self/don't send)
-to explain this briefly...
double-click on the keyframe that your movie ends on... the properties come up for that frame...
click on the Actions tab...
click the plus sign...
choose getURL
on the right side of the window, there should be a spot to input text for the URL...
and there should be pull-down choices for "_self" and for "don't send"
_self - loads URL into current movie.
_blank - loads URL into new browser window.
_parent - loads URL into the parent frame of the current frame.
_top - removes current frameset and loads URL into the browser window.
the 'don't send' is a variable...
Don't Send - Does not send variables. Default for opening URLs.
Send using GET - sends a small number of variables that are appended to the URL identified in the URL parameter.
Send using POST - is best used for flash forms and sends the variables separately to the URL. This is best used when dealing with CGI or something similar.