Problem deploying MS Word 2003 Add-in (VS2005, VSTO SE, VB, FrameWork 2.0) [2005]

Hi,
I have create a Office 2003 add-in for Word 2003 using Vb 2005, VSTO SE with framework 2.0. I can run my office Add-in from development environment without any problem. The add- in simple with just two VB 2005 Forms and 2 command bar buttons to open the forms.
I created a setup of this add-in. Before installing on the deployment machine I installed VSTO SE runtime on the deploment machine.After installing the setup I can see the add-in in the com-addin menu In Tools->Com Add-In (Word Menu).
When I check the Add-In & click ok The add-in remains unchecked.
I also made sure if the add-in is disabled in the word application ( Help->About->Disabled Items). The add-In is not disabled here.
I would realy appreciate help on how to deplo Word 2003 Add-In on the deployment machine. I have gone through lot of articles , but still havent been able to resolve this issue. Kindly assist me.
Any more information about the add-in required?