I am trying unsuccessfully to install adobe digital reader for my samsung tablet which doesnt have windows or mac can anyone advise me
You probably need to install a separate program capable of reading ebooks.
Bluefire is good, generally available, free, and supports Adobe DRM books.
You may need to get the books onto ADE on a computer, then copy them to the tablet using a file manager such as Windows Explorer.
Make sure ADE on the computer and Bluefire on the tablet are registered with the same Adobe ID.
Anoter free app is Overdrive app, which will allow you to borrow, download and read DRM library books on a tablet with no PC needed at all.