Actually you do not need to make flash by yourself, you can get some transparent flash from
http://www.transsiberiancool.com/swf/1.swf
http://www.transsiberiancool.com/swf/2.swf
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After you download the transparent flash, you can insert the following code into your html page < EMBED src="http://www.transsiberiancool.com/swf/1.swf" width="400" height="400" type=application/octet-stream wmode="transparent">
good luck!
http://www.transsiberiancool.com/swf/1.swf
http://www.transsiberiancool.com/swf/2.swf
......
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After you download the transparent flash, you can insert the following code into your html page < EMBED src="http://www.transsiberiancool.com/swf/1.swf" width="400" height="400" type=application/octet-stream wmode="transparent">
good luck!