Inserting Flash in html:
1. inside of your <body> tag, where you want the flash movie, insert both an Embed and an OBJECT tag like below.
2. Change yellow sections to fit your movie---flash (swf) file.
*note:
  1. The OBJECT tag is for Explorer and the EMBED tag is for Netscape.
  2. where it says "classid="clsid:D27CDB6E-AE6D-11cf-96B8-444553540000"
  codebase="http://download.macromedia.com/pub/shockwave/cabs/flash/swflash.cab#version=6,0,0,0" 
  or type="application/x-shockwave-flash" PLUGINSPAGE= 
  "http://www.macromedia.com/shockwave/download/index.cgi?P1_Prod_Version=ShockwaveFlash", 
  it is looking for the flash plugin and gives the URL to macromedia and the current 
  Flash plug-in version.
<html>
  <head>
  <title>YourMovie</title>
  </head>
  <BODY bgcolor="#CCCCCC">
  <OBJECT classid="clsid:D27CDB6E-AE6D-11cf-96B8-444553540000"
  codebase="http://download.macromedia.com/pub/shockwave/cabs/flash/swflash.cab#version=6,0,0,0"
  WIDTH=550 HEIGHT=400>
  <PARAM NAME=movie VALUE="yourmovie.swf"> 
  <PARAM NAME=quality VALUE=high> 
  <PARAM NAME=bgcolor VALUE=#CCCCCC> 
  <EMBED src="yourmovieswf" quality=high 
  bgcolor=#CCCCCC 
  WIDTH=550 HEIGHT=400 
  type="application/x-shockwave-flash" PLUGINSPAGE=
  "http://www.macromedia.com/shockwave/download/index.cgi?P1_Prod_Version=ShockwaveFlash"></EMBED>
  </OBJECT>
  </body>
  </html>