I believed what you have now is the CD for V5R2, If you plan to go to the next version of OS/400 you would have to install the Last CD's you received. I also did upgrade from V4R5 to V5r1 last december and I only load the the CD's you mentioned first (I-Base, B2924 (1-5), L2924 (1-2)) then applied the CUM PTF that comes with it C2134510 which is the latest cum and It was very successful. The only problem I encounter the SQL on our BPCS Package. The hit is the QAQQINI file on QSYS. I copied it on QUSRSYS and add SQL_COMPRESS_WARNINGS, *YES, DEFAULT.