switch to aptitude, better than apt-get when it comes to removing dependencies..
basics commands that i use 90% of the time..

aptitude install package
aptitude remove package
aptitude search package
aptitude update

what EXACTLY are you typing to mount the drives? please paste actual prompt with error etc..

if the driver exists then the source can be compiled for your kernel version since Centos doesn't provide it

asix provides the source here..
http://www.asix.com.tw/download.php?sub=driverdetail&PItemID=86

compile the module for your kernel and walla..