>    I cannot download the source file of the book,because our net 
enviorment cannot use ftp to get file.can u mail it to me? 
> 
>    thank u in advance!!
> ______________________________________
> 
> 
> ===================================================================
> 新浪免费电子邮箱 (http://mail.sina.com.cn)
> 新浪分类信息：轻松订阅，量身定制,好信息来找你! 
(http://classad.sina.com.cn/)

My apologies for the problems you have had accessing certain areas of our 
site. I understand our development team are undertaking some maintenance 
on the site, and we hope to correct any errors as quickly as possible. We 
will endeavour to have the site working normally as quickly as possible. 

If you are having problems downloading code please contact 
support@w..., and providing there are no restrictions by your service 
provider on email attachments, we'll email the code to you.