风水高人真实故事:ASP怎样获取一段HTML代码里的图片地址？

比如有一段HTML代码（图片显示的代码，图片数量不定）：

<B><BR><IMG onmousewheel="return imgzoom(this);" onmouseover="if(this.width>screen.width*0.7) {this.resized=true; this.width=screen.width*0.7; this.style.cursor='hand'; this.alt='Click here to open new window\nCTRL+Mouse wheel to zoom in/out';}" onclick="if(!this.resized) {return true;} else {window.open('../uploadfile/images/200655174548845.jpg');}" src="../uploadfile/images/200655174548845.jpg" onload="if(this.width>screen.width*0.7) {this.resized=true; this.width=screen.width*0.7; this.alt='Click here to open new window\nCTRL+Mouse wheel to zoom in/out';}" border=0>

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<IMG onmousewheel="return imgzoom(this);" onmouseover="if(this.width>screen.width*0.7) {this.resized=true; this.width=screen.width*0.7; this.style.cursor='hand'; this.alt='Click here to open new window\nCTRL+Mouse wheel to zoom in/out';}" onclick="if(!this.resized) {return true;} else {window.open('../uploadfile/images/200655174548845.jpg');}" src="../uploadfile/images/200655174548845.jpg" onload="if(this.width>screen.width*0.7) {this.resized=true; this.width=screen.width*0.7; this.alt='Click here to open new window\nCTRL+Mouse wheel to zoom in/out';}" border=0>

上面代码图片显示的数量不定，也许有10几张，现在我想通过ASP编写一段代码，不管有多少张图片，让它自动将第一张图片的URL获取出来，也就是“src="../uploadfile/images/200655174548845.jpg" onload”中src=""两个引号间的图片地址取出来，请高手帮忙写这段代码，15分奖励！
楼下的大哥可能没听完全明白我的意思，我只想取第一张图片的完整URL，就是第一个src=""两个引号中间的图片地址../uploadfile/images/200655174548845.jpg