Can't Install VMa

I'm new to VM Ware and I'm trying to install VMa for my education. Currently, I'm running ESXi 4.0 on a Dell PowerEdge. When I try to install VMa, I get the following error when it tries to start:

Your CPU does not support long mode. Use a 32bit distribution. (full image attached)

My two questions are:

1. How can I tell if I'm running a 64 bit system? vSphere lists my Processor type as Intel(R) Xeon(R) CPU E5430 @ 2.66 GHz, but doesn't say if it's 32 or 64bit. I read the requirements in the VMa manual, but I have no idea if my processor has EM64T support with VT enabled.

2. If I am running 32bit, where can I find a 32bit distribution? I've tried loading via uploading the file and the deploy URL, but both appear to be the same version.

I tried to install the Linux CLI interface on another machine, but that didn't work and is a discussion for another thread.

Any assistance would be appreciated.