I suspect you are looking at:
SF97043: V6R1M0 TO V7R1M0 FIX CROSS-REFERENCE SUMMARY
SF97040: V6R1M0-V6R1M1 TO V7R1M0 FIX CROSS-REFERENCE SUMMARY
Because, in there, I clearly see:
5761999 V6R1M1 MF58122 V7R1M0 MF58124
There just ain't no way IBM is going to issue new PTF's for 6.1.0 of
microcode when there are no reasons to not be running 6.1.1.