Altec Lansing ACS495 and USB setup

When I connect my ACS495's to my computer, I got a message in the windows device manager thet the speakers were not present, not connected, or not all the drivers were installed. I called altec lansing, and they said that the usb would not work with win98 se. Later, I went over to a friend's house, and he has ADA310's (they work on the same platform as the acs495's), and his are working fine on usb (he is running win98 se). I went to dell's driver page, and downloaded the drivers and audio management software for the speakers, and success!!! They work!! After that, I wanted to use the newer audio management software from altec lansing, but when I try to install it, the setup says it cannot detect the usb speakers. I went and checked everything, and it was all fine. Can someone tell me how to get the newer audio management software on my computer? Thanks.