Bad luck,my QQ was be stolen last week,this is my new QQ number.

Bad luck,my QQ was stolen last week,this is my new QQ number.

这样就可以啦。不必用has been。。。

解释：很糟糕，我的qq上个星期被盗了。这个是我的新qq。

was改为has,be 改为been

例如：my account has been stolen

而且一般不会是bad luck

至少也得是unfortunately吧

还有。。。

I don't think foreigners use OICQ as we Chinese do.

They like msn I think.

肯定有语法错误啦，应该这样写才对：
Bad luckly,my QQ was stolen last week,this is my new QQ number.
真是倒霉，我的QQ上个星期被盗了，这是我的新QQ号。

是这样的:Bad luck,my QQ was stolen last week,this is my new QQ number.
翻译:太不幸运啦,我的QQ上周被盗了,这是我新的QQ号.