Windows Update Keeps failing installation.

Windows Update, keeps failing in installing, language packs for my Windows
Vista. I have an Spanish version, and an english speaker in my house. So I
want to install the english package so that the english speaker can use
Vista. But the installation keeps failing, saying error code:1, and I am not
sure what to do about it.

Where can I download the United States language package, so that I can
install it at any time besides having to download it from the Windows Update
website?

Is it possible to slip-stream the language package so that I can also choose
to install it while Vista is installing?

Thanks.
--
Stuserver