[CentOS] modules.conf changes in kernel 2.6

I used to be able to modify my modules.conf file so that certain NIC cards 
would load specific drivers.

Has this changed in kernel 2.6

i.e.
<snip /etc/modules.conf>

alias eth0 e100
alias eth1 e1000

</snip>

It used to be that I could reverse this order and eth0 would be the GigE 
card.