Wdtv slingplayer problems

I have no issues in accessing my home Slingox 500 from my WD TV Live.  I can put up with the sub-par picture - not that bad, actually, and no freezing as others have described.  HOWEVER,  I cannot access any of the controls that allow me to satisfactorily watch my recorded programs. At home my Slingbox  is connedted to my TIVO Premiere XL.  Nowhere on the WD TV Live remote is there an option to bring up my TIVO menu to see recorded programs, to select one to view, and to skip 30 sec. forward, etc.  All of the DVR controls on the WD remote are greyed out.  If I use my iPad  to access the Slingbox, then I can select a program, pause it, then switch to my WD and resume viewing, BUT, I can’t skip commercials, etc.  Anybody know of a fix for this?  I thought maybe some of the programmable buttons on the “Misc” tab of the blue (D) key might be an answer, but can’t find a way to program them.