SAP Fiori Launchpage is blank

Hi -

I have a back end EHP6 of ECC based on NW 7.03 and a separate NW gateway server 7.02. We have deployed the UI Add-On on the gateway side while the application add-on for Sales order create/change is deployed on back end server. After applying all the required notes and activating the services when I launch the home page I get the following error;

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013-07-31 10:46:26 Error in OData response for GET "/sap/opu/odata/UI2/PAGE_BUILDER_PERS/Pages('%2FUI2%2FLAUNCH_PAGE')": HTTP request failed Details: No service found for namespace /UI2/, name PAGE_BUILDER_PERS, version 0001 - {"requestUri":"/sap/opu/odata/UI2/PAGE_BUILDER_PERS/Pages('%2FUI2%2FLAUNCH_PAGE')","statusCode":403,"statusText":"Forbidden","headers":[],"body":"{\"error\":{\"code\":\"/IWFND/MED/170\",\"message\":{\"lang\":\"en\",\"value\":\"No service found for namespace /UI2/, name PAGE_BUILDER_PERS, version 0001\"},\"innererror\":{\"transactionid\":\"F9EFF9E2FE73F104959A005056AE003F\",\"errordetails\":[]}}}"} sap.ui2.launchpage.PageBuildingService

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My question is - as per the followinghttp://help.sap.com/saphelp_uiaddon10/helpdata/en/5e/55f15acb5d4692b200280b41d80c5c/frameset.htmhttp://help.sap.com/saphelp_uiaddon10/helpdata/en/5e/55f15acb5d4692b200280b41d80c5c/frameset.htm

The back end ECC server has the SRA* add-on deployed for the respective appl.

I have activated /UI2/LAUNCHPAD on gateway, but the other ones haven't been installed in the system. I have deployed UI Add-on via the stack XML file - so is there a missing component on my NW gateway system that wasn't selected by Solution Manager?

Gateway Packages. (ABAP/BASIS is 702 SP 13)

ERP6.0 EHP6

Thanks,
Raza.