Paid version -yes
I am doing exactly as you say?? (If I switch back to stock ICS ROM I see my apps, but here in jb it shows 0????)
Sent from my XT875 using Tapatalk 2
JB ROMs use the sd-ext and ICS use internal memory. This was changed for safe strap 3+. Go into TiBu settings. Select preferences. Then select backup location and hit "whole device" when asked where to search. Select the one that has your backups and select "use this folder" Hit your back button and TiBu will reload and all will be good.
Sent from my XT875 using Xparent ICS Tapatalk 2