freehostia 上传文件后提示500错误 freehostia, 提示, 文件

错误代码如下：  Internal Server ErrorThe server encountered an internal error or misconfiguration and was unable to complete your request. Please contact the server administrator, support@freehostia.com and inform them of the time the error occurred, and anything you might have done that may have caused the error. More information about this error may be available in the server error log. Apache/1.3.33 Server at milanquan.freehostia.com Port 80 没上传文件的时候： Index of / Name                    Last modified       Size  Description Parent Directory        24-Dec-2009 07:30      -  Apache/1.3.33 Server at tjnvr.cn Port 80 是我缺少了什么步骤么？请高手帮忙