Microsoft shut down the windows 98 update server fiannly last week..It not just dumps you to a redirect loop that doesnt stop!!So updates are gonna be a bastard but i found this and it works awesome..

http://exuberant.ms11.net/98sesp.html

UNOFFICIAL Windows98 Second Edition Service Pack 2.1a
It contains only operating system updates. It does NOT contain Internet Explorer 6, DirectX 9, Media Player 9 and their updates.