Well welcome to the Se7enforums just the same! djsolidsnake86
You are going through the same dilemna I had some time back of never being able to get online with any Linux distro long before Vista even with an old dsl setup here. The last update for that was seen in 2002 for 98-XP compatibility. The ISP saw a change here fortunately before the Release Candidates were available since I have multiple 64bit installations!
The first place to start with the modem there is at the manufacturer's own support site to see they released any Vista 64bit updates. The old 32bit drivers
for the dsl setup here worked on the 32bit 7 but not the 64bit. Even after going with a new ISP the modem they provided lacked 64bit drivers when looked into where a new one was bought separately! You may have to make a few changes due to these problems in order to get online with any 64bit Windows.