where do you want to use your flash images? on your xanga? first you'll have to upload your flash images (.swf files) to a hosting site. then use a code like this below and insert the url address of where your flash .swf file is stored in the code. adjust the size of the flash image accordingly by changing the width and height parameters in the code then put it in your xanga.
CODE
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<OBJECT classid="clsid:D27CDB6E-AE6D-11cf-96B8-444553540000"
codebase="http://active.macromedia.com/flash2/cabs/swflash.cab#version=4,0,0,0"
ID=lineas WIDTH=227 HEIGHT=227>
<PARAM NAME=movie VALUE="http://insert url address of flash file here">
<PARAM NAME=quality VALUE=high>
<PARAM NAME=loop VALUE=true>
<EMBED src="http://insert url address of flash file here" loop=true quality=high
WIDTH=227 HEIGHT=227 TYPE="application/x-shockwave-flash"
PLUGINSPAGE="http://www.macromedia.com/shockwave/download/index.cgi?P1_Prod_Version=ShockwaveFlash">
</EMBED>
</OBJECT>
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