Hi,
you don't see Backint files in the ADSM-client-GUI. Start the backint file
manager (backfm) which is located in your /usr/sap/<SID>/SYS/exe/run
directory. Start backfm with the -f option giving your
/oracle/<SID>/init<SID>.utl file as a parameter (backfm -f
/oracle/<SID>/init<SID>.utl). There you see your backint files and have a
delete option.
Stefan Wolf