Hi Horst, I think all ABAP section (and another sections?) need to be revised.
For example here:
If we clic in "ABAP Workbench" the link goes to:
I think the correct link is here: ABAP Workbench Tools from SAP NetWeaver 7.3 EHP1
I will try to get hold of our ABAP "space editor" Olga Dolinskaja, who will hopefully be able to change the featured content on the ABAP landing pages.