Wcf unable to publish the meta data

HI,
this is James im using the vs 2008 and xp +sp 3  ,and IIS 5.1 .
i was using  builting wcf example ,if i run the project it is going run successully, and if i want to publisht the meta , i mean to use it in another machine
im getting the timeout errror.
what may be the problem !