I bought a Portal-Developement book with some very interessting tutorials.
For this book the SAP NW 7.0 Java Trial Version (including Developer Workspace SR2 and Developer Studio) is recommended.
Here in SDN I just found SAP NetWeaver Composition Environment 7.1 SR5. Unfortunately the differences especially in Developer Studio are big (e.g. in the new version there is no possibility to make a quick par-upload).
So where can I find the "old" NW 7.0 Java Trial Version?