Hello Juan Lee
You set up a normal "SAPGUI" entry, thats why you see the normal easy access menu.
The main requirements for NWBC 5.0:
2066345 - NWBC for Desktop 5.0: Prerequisites and restrictions
You have to activate the corresponding ICF Services and the entry should be:
New entry under URL:: https://yourSID.domain:44300/sap/bc/ui2/nwbc
regards
Patrick
PS: please use the newest Business Client 6.0 PL2 if possible. (successor of NWBC 5.0)