Wonder why some MyFlashStore Flash Widgets show up and some don’t?
If yours don’t show up you are probably using the outdated urls in your widget code looking like this

http://www.myflashstore.net/widgets/flash/soundstore.swf?user_id=2050

You may update these from http:// at the beginning to https:// since MyFlashStore is using SSL, which brings some more security.

Your complete HTML code of the Store should look like this and you will need to update 4 Links.

<div class="mfs_player"><object type="application/x-shockwave-flash"
data="https://www.myflashstore.net/widgets/flash/soundstore.swf?user_id=2050" allowscriptaccess="never"
allownetworking="internal" height="385" width="610"><param name="allowScriptAccess" value="never">
<param name="allowNetworking" value="internal"><param name="movie"
value="https://www.myflashstore.net/widgets/flash/soundstore.swf?user_id=2050"><param name="menu"
value="false"><param name="wmode" value="transparent"><param name="allowFullScreen" value="true">
<param name="flashvars" value="autoplay=0"></object><div class="mfs_buynow"><a href="https://myfla.sh/pay"
target="_top"><img src="https://www.myflashstore.net/flash/images/soundstore-buynow.png"
border="0px" height="19" width="67"></a></div></div>

That should fix the Problem.