Thanks alot AP I did find the Dell offers an OEM ESXi CD but wont it being an OEM be a problem?
Vendors like Dell, HP or others usually offer slightly modified installation CDs which include additional drivers and tools to make sure their hardware is fully supported. The ESXi kernel is the same as on the original VMware installation CD.
If I use option 2 and go to the link you provided is it as easy as burning the cd and then putting it in and it will update in the host?
Yes, inject the driver into the image, burn the CD and run the installation. Since you are asking for an "update", do you already have an older version installed? Anyway, in that case you will be asked whether to preserve an existing VMFS datastore during installation.
André