I use a Nokia 770 as a dedicated ebook reader and am unable to connect to my wireless router.

I would like to find downloads for reflashing and installing FBReader offline from Windows 7. I haven't been able to find a single site that I can connect to for downloads.

Which OS would be best and where can I download a package that I can Install from my Windows laptop?

Where can I find a FBReader package that I can install onto the Nokia from my Windows laptop?

Thanks.