The Citrix Dazzle Plugin is now available in Citrix Merchandising Server 1.1. If you don’t have a Merchandising Server, you can demo the Dazzle solution from the CitrixCloud.net website! http://dazzle.citrixcloud.net/Citrix/Scheduler/Signup.aspx
I will now show you how to setup this with a step-by-step guide, and it's quick to setup. I've used this method several times, to show customers how this can be done with Dazzle and the "new" mindset of delivering applications via Citrix Dazzle.
Please not that the Citrix Dazzle version that you can download after the 23.11.2009, does not allow the use of http://, but only accepts https:// ! I've contacted Citrix to check how to either workaround this or if they have a new CitrixCloud.net webinterface server that allows the use of https://
Be sure to enter a valid email address, because you will receive an email with login details and config details.
The follow these steps to complete the demo setup:
To set up Dazzle Tech Preview demo environment: 1. Navigate to the Dazzle Technology Preview page.

 2. If prompted, login with your MyCitrix credentials. If you don't have a MyCitrix account, you can set one up here if you do not have MyCitrix credentials. 3. Download/install Receiver for Windows 1.0 from Dazzle Technology Preview page NOTE: Support limited to Windows XP and Vista systems 4. Download/install XenApp Web Plugin from the Dazzle Technology Preview page. 5. Download/install Offline app plug in from the Dazzle Technology Preview page. 6. Download/install Dazzle Technology Preview from the Dazzle Technology Preview page. 7. When Dazzle runs for the first time after installation, you will be prompted to "Please add at least one store". Select OK on this dialog box.
 8. The Configure Stores dialog will be displayed next. Right click in the white box and select "Add"..
 9. Give the store name of your choice in the Name field. 10. In the configuration URL field enter -- http://demo.citrixcloud.net/Citrix/PNAgent/Config.xml -- and click OK (NOTE: do not use https:// for the demo URL, only http://). 11. Click OK in the Configure Stores dialog box when done.

 12. You will be presented with an authentication dialog, enter the Demo Account Credentials below and check the Save Password box, then select Log On.
 Note, if you are not prompted for credentials, start Citrix Dazzle from the start menu. 13. Citrix Dazzle will start and you can configure the application you want to add to your Start menu. The application list can be viewed by clicking on Dazzle Store in the box on the left. Clicking on the Add button to the right of the application will add the application into the Dazzle Folder and in the Citrix Dazzle folder in your Start menu.

Now you should have the option to choose applications under the Dazzle Store.

I've selected MS Office and will add the Word application.

Now, I've added Word to my Dazzle Folder and all applications that you do add will be put into the Dazzle Folder. You can at any time also see these applications from the Start Menu - All Programs - Citrix Dazzle
If you do have a Citrix Merchandising Server you will first need to download(the virtual appliance) and import it to the XenServer. Next step is to configure your Citrix Merchandising Server’s IP addresses. Then log in with the default credentials: username: root Default Password: C1trix321. This is the “Configure Active Directory Connectivity” page :
Please pay attention! You may experience some problems in the beginning when accessing the Dazzle store. Enter the following information: NAME;http://webinterfaceserver.domain.prefixl/Citrix/PNAgent/config.xml;on;NameOfDazzleStore |