How do i install retail module in ax 2012..

Hi Neelima i am looking for same thing..

2012 to 2012 Retail is a point upgrade - complete guide is here http://www.microsoft.com/en-us/download/details.aspx?id=14599

1. Close any open clients on your Microsoft Dynamics AX system.
2. Open the CD folder of the Microsoft Dynamics AX 2012 Feature Pack distribution DVD, and navigate to the updates folder.
3. (Skip this step if Cumulative Update 2 (CU2) has previously been installed.) In the DynamicsAX2012-KB2606916 folder, double-click the AxUpdate file to install the update. Specify the correct databases to upgrade, select all the other components that are offered, and then click through the wizard.
4. (Skip this step if your Microsoft Dynamics AX kernel version is 6.0.947.862 or higher.) In the DynamicsAX2012-KB2650968 folder, double-click the AxUpdate file to install the update. Select all the component updates that are offered, and then click through the wizard.
5. In the CD folder, run Setup.exe.
6. Under Install, click Microsoft Dynamics AX components.
7. Click through the wizard to the Review license terms page, select I accept the license, and then click Next
8. On the Ready to install page, click Install to install setup support files and updates for the support files.
9. On the Modify Microsoft Dynamics AX installation page, select Add or modify components, and then click Next.
10. On the Add or Modify Components page, select Databases, and then click Next.
    Do not select any of the Retail components for installation at this point. The system upgrade must be completed before you install the Retail components.
11. On the Prerequisite Validation page, satisfy any prerequisites, and then click Next.
12. On the Select databases page, select Configure existing databases, and then click Next.
13. On the Configure existing databases page, accept or provide the name of the SQL Server computer and the database names, and then click Next.
14. On the Select additional models page, select Extensions and Extensions Upgrade, and then click Next.
15. On the Prerequisite Validation page, satisfy any prerequisites, and then click Next.
16. On the Ready to install page, click Install.
17. When setup has been completed successfully, click Finish.

Use this procedure to synchronize the Microsoft Dynamics AX databases that have been modified, and to run the required upgrade scripts.
1. Restart the AOS.
2. Open the Microsoft Dynamics AX client. If the Extensions and Extensions Upgrade models were installed correctly, a window opens with the message: “The model store has been modified.” Select Start the software update checklist, and then click OK.
After a brief compile, the Software update checklist opens.
3. Complete the following checklist tasks. For more information about these tasks, see the user Help.
a. Restart Application Object Server
b. Compile application
c. Detect code upgrade conflicts
d. Compile into .NET Framework CIL
e. Detect upgrade scripts
f. Synchronize database
4. Close the client.

Then follow
http://technet.microsoft.com/EN-US/library/hh575193 to install Retail Headquarters.