Handling of Image Profiles is done via the PowerCLi interface.

First off to fetch the latest Image Profiles listing by adding VMware's depot.
Add-EsxSoftwareDepot -DepotUrl https://hostupdate.vmware.com/software/VUM/PRODUCTION/main/vmw-depot-index.xml
List all available bundles
Get-EsxImageProfile | Format-Table -AutoSize
Piping Get-EsxImageProfile through Format-Table gives you the full name of the image.

To fetch an image to export it locally
Export-EsxImageProfile "ImageProfileNamefromListAbove" -FilePath D:\ESXiDepot\Bundle\ImageProfileNamefromListAbove.zip -ExportToBundle
or to export to a bootable ISO
Export-EsxImageProfile "ImageProfileNamefromListAbove" -FilePath D:\ESXiDepot\ISOe\ImageProfileNamefromListAbove.iso -ExportToIso

Now we have the bundles we select the bundle we want

Add-EsxSoftwareDepot D:\ESXiDepot\Bundle\ImageProfileNamefromListAbove.zip

Because the bundle has come from VMWare it will be a read only bundle.
We clone the one we need and embedded the HA Agent in it.

Add-EsxSoftwareDepot http://your.vcenter.server.address:80/vSphere-HA-depot
New-EsxImageProfile -CloneProfile ImageProfileNamefromListAbove -name "NewImageProfileName"
Add-EsxSoftwarePackage -ImageProfile “NewImageProfileName” -SoftwarePackage vmware-fdm

Remove-DeployRule -DeployRule ProductionBootRule -delete

PowerCLI D:\VMware\Infrastructure\vSphere PowerCLI> New-DeployRule -Name ProductionBootRule -Item EMA-ESXi-5.0.0-2012120
2001-standard,em-vs-00,EMCloud -Pattern "mac=00:30:48:f1:5d:1a"

Add-DeployRule -DeployRule ProductionBootRule

PowerCLI D:\VMware\Infrastructure\vSphere PowerCLI> Export-EsxImageProfile EMA-ESXi-5.0.0-20121202001-standard -FilePath
d:\vmware\depot\EMA-ESXi-5.0.0-20121202001-standard.zip -ExportToBundle

PowerCLI D:\VMware\Infrastructure\vSphere PowerCLI> Test-DeployRuleSetCompliance 103.29.172.71

VMHost ItemList
------ --------
103.29.172.71 {Non-compliant: EMA-ESXi-5.0.0-469512-standard ...


PowerCLI D:\VMware\Infrastructure\vSphere PowerCLI> Test-DeployRuleSetCompliance 103.29.172.71 | Format-Table -AutoSize

VMHost ItemList
------ --------
103.29.172.71 {Non-compliant: EMA-ESXi-5.0.0-469512-standard != EMA-ESXi-5.0.0-20121202001-standard}


PowerCLI D:\VMware\Infrastructure\vSphere PowerCLI> Test-DeployRuleSetCompliance 103.29.172.71 | Repair-DeployRuleSetCom
pliance
PowerCLI D:\VMware\Infrastructure\vSphere PowerCLI>