I ran into a problem setting Logon Page.
I chose it as follows:
1. Open nwa (<you portal link>/nwa)
2. Choose “Configuratin”
3. Choose “Authentication and Single Sign-On”
4. Choose “Properties” and Select “Modify”
5. Submit your links to a resource, and save.
http://help.sap.com/saphelp_nw73/helpdata/en/48/ee941b0b803697e10000000a42189b/frameset.htm Clear information from SAP.
Where is the best place resources?
Open Content Administration -> Web Resource Repository
Create new folder (for example ZPORTAL) and download you resources
then get link you jpg file and specify it as shown in paragraph 5 of this document.
I hope this has helped you!!!
For the rest of the required SAP NetWeaver Developer Studio!