How to inject network driver for Dell Vostro 1520

I try to install ESXi 5.5.0 on Dell Vostro 1520. But I see the error message the same as described in the following thread.

Vmware vSphere Hypervisor installation network adapter problem

Unfortunately, Dell does not provide a customized ESXi installation image for Dell Vostro 1520.

http://en.community.dell.com/techcenter/b/techcenter/archive/2012/05/08/no-network-adapters-were-detected-error-message-…

The following shows one solution is to inject the driver. But Dell website only provides the driver for windows. I'm wondering how to find the drivers that would work with ESXi installation ISO image. Thanks.

Ops changes part 4 – Injecting or installing drivers | VMware vSphere Blog - VMware Blogs