主要问题是权限，但是不知道是那几个文件夹
app/code/community/OutsourceOnline/
app/design/frontend/base/default/layout/OutsourceOnline_Captcha.xml
app/design/frontend/base/default/template/outsourceOnline/
app/etc/modules/OutsourceOnline_Captcha.xml
app/locale/en_US/OutsourceOnline_Captcha.csv
downloader/.cache/community/OutsourceOnline_Captcha-2.0.7.tgz
app/code/commnity
app/design
app/etc
app/local
downloader
都必须写入权限