ArcGIS 10.1, Delphi XE2 and licensing

Hi everyone,

We have a project on Delphi 5 and we need to upgrade it for Delphi XE2.
Everything went well until it came to the components of ArcGIS.
The problem is that I need to check the license for Desktop and Engine.
I found these two threads:
http://forums.arcgis.com/threads/262...-and-licensing

http://forums.arcgis.com/threads/605...-and-licensing

When including libraries ArcGISVersionLib_TLB, esriControls_TLB, esriSystem_TLB, ComObj I thought that everything would work but the project returns the following errors:

undeclared identifier TMapControl, TVersionManager, TAoInitialize

in the code:

public
{ Public declarations }
MapControl:esriControls_TLB.TMapControl;
verManager: arcGISVersionLib_TLB.TVersionManager;
aoInit: TAoInitialize;

any ideas?
Thanks beforehand.