Acer Aspire 8730 + Windows 7

I purchased an acer aspire 8730G, which came with windows vista home premium 64bit. On the laptop, there is a media controller thingy on the right side of the keyboard (http://www.gamecity.at/dge/notebooks/Acer/Images/acer_aspire-8730.jpg) - pic related.

Basically, it controls sound and media on the laptop, and I find it very useful. The problem is, after installing windows 7, and all the drivers accordingly, this media controller still doesn't work. Acer is telling me to reinstall windows vista, which I really don't want to do.

My question, what would the media controller be listed as under the device manager, and is there a way I can find an independent driver for it. Acer tech support is just awful.

If I missed any information, I will do my best to add it when requested.

Thanks a bunch,
Alex