Parse Windows login event for specific details

Hi,

I have a windows event that I want to search for in the event log using Powershell.  I've got the basics but can't find how to drill further into the details.  This is what I have so far:

get-eventlog security | where{$_.eventid -eq 4624 -and $_.message -match "Logon Type:\s+3"}

The problem is in the event details I have the following:

An account was successfully logged on.

Subject:
    Security ID:        NULL SID
    Account Name:        -
    Account Domain:        -
    Logon ID:        0x0

Logon Type:            3

New Logon:
    Security ID:        test\administrator
    Account Name:        administrator
    Account Domain:        test
    Logon ID:        0x318df67
    Logon GUID:        {0b843e34-532c-e4c2-9577-2ee19684f472}

Process Information:
    Process ID:        0x0
    Process Name:        -

Network Information:
    Workstation Name:    
    Source Network Address:    192.168.10.11
    Source Port:        51446

How can I query for this information, as for example there are 2 instances of Security ID....

Thanks

James

Alter De Ruine