I just checked fileupyours and it WILL work there.
(remember they delete nonactive accounts after 25 days and they seriously do it)
Ill post the code as I did it there so you can see how it works:
(this is for the snow effect)
This will go in the Header:
<center>
<applet code="snow" codebase="
http://www.fileupyours.com/files/142342/snoweffect/" width="280" height="225">
<param name="strength" value="6">
<param name="image" value="
http://www.fileupyours.com/files/142342/snoweffect/mypic.jpg">
<param name="html" value="
http://www.ibdprince.com/java.shtml">
</applet>
</center>
What you will need to do is make a folder wherever you DO upload the two files to.
Upload the files inside that folder. In my example I made a folder called snoweffect.
Replace
http://www.fileupyours.com/files/142342/snoweffect/ in the first line with the folder url
(the folder the files are in- leave snow.class off the end)
Replace
http://www.fileupyours.com/files/142342/snoweffect/mypic.jpg with the pictures url
Change the width and height to match the width and height of the picture you use.
Change "strength" as you want it: Strength Values = 1 to 10 (10 = very heavy)
Here is an example so that you can see that it works.
http://members.cox.net/mysmileyplace/snow%20effect/snoweffect.html