hi ,
you have to insert this lines in your hotspot :
<hotspot name="spot3" onclick="mainloadpano(visite.xml);" url="hotspot.png" crop="0|0|65|65" frame="0" lastframe="9" frameheight="65" framewidth="65" onloaded="set(stopSequence,false);animate(spot3,0.1);" onhover="showtext(Vers vue 1);" ath="39.4635" atv="27.7889"/>
hotspot png: http://fr.packupload.com/MYWGHU86V9U
so you can use a swf hotspot .