sfiawong,
在 bk 網 (apply to both reply and signature)
1) click "URL" button
2) type in your URL
3) click "確定" button
4) type the text you want to show (e.g. click here) in "指令碼提示 輸入網站名稱"
5) click "確定"
done
在其他地方 (要用 original html code):
<a href="http://www.someserver.com/somedir/somefile.xxx">click here</a>
This is the most simple version. Where "http://www.someserver.com/somedir/somefile.xxx" is the url of your site, and "click here" is the text you want others to see.