IOS for 2500

[Mithrandir]

Hello friends of the 6bone

I was browsing the Cisco site, hoping to find a IPv6 IOS release for the
2500 series router.
But that site is BIG!! I get lost in that place.

I can't get the IOS myself but a company I work with can.
So, does anyone of you know which latest IOS release I'm looking for?
It must support IPv6 ofcourse, and run on a Cisco 2514, 2505 and 2503.

If anyone knows the exact name/version of that IOS please let me know.

Thank you very much
Kind regards
Mithrandir Cielen
Fddi Institute
Belgium