а ты как передаеш переменную?
я передавал так:
<object classid="clsid:d27cdb6e-ae6d-11cf-96b8-444553540000"
codebase="http://fpdownload.macromedia.com/pub/shockwave/cabs/flash/swflash.cab#version=7,0,0,0" width="500" height="470" id="flash1" align="center">
<param name="allowScriptAccess" value="sameDomain" />
<param name="movie" value="flash1.swf?id=2829064&rnd=8212&lang=ua&host=http://wap.buffer.umc.ua:80/custom_cards/" />
<param name="quality" value="high" />
<param name="bgcolor" value="#ffffff" />
<embed src="flash1.swf?id=2829064&rnd=8212&lang=ua&host=http://wap.buffer.umc.ua:80/custom_cards/" quality="high" bgcolor="#ffffff" width="500" height="470" name="flash1" align="center" allowScriptAccess="sameDomain" type="application/x-shockwave-flash" pluginspage="http://www.macromedia.com/go/getflashplayer" />
</object>
как принимал, я уже показал.