BW Upgrade : Web Templates

HI,

We are done with the upgrade from BW3.5 to BI7.3 in development box.

I tried accessing web reports after the upgrade and got an error message

'File not found'.

The system could not find the file. Check whether the file is actually located where specified in the path.

Another cause might be that the system could not find the application program needed to execute the file.

In the Upgrade guide there is a step :

6.1BW: Converting the Web Objects from Source Release SAP BW 3.5

We are doing only Technical upgrade and NOT functional upgrade.

Do we still need to proceed with running program 'RSZW_ITEM_MIGRATION_3X_TO_70.'?

Appreciate anyone advice on this as we are inexperience in this.

Thank you.

Regards

Maili