FMCB volunteers usually install ESR dvdv direct off as default ESR launcher.
Check if you can find an file named ESR.ELF in your boot-folder (MC?:\BOOT\)
If not, rename "ESR beta r9b dvdv direct off.elf" to "ESR.ELF" und copy it with uLaunchELF to MC?:\BOOT\ (where MC? is the Memory Card with your FMCB installation).
After this, restart FMCB und insert an ESR-patched Game. After few seconds FMCB should start ESR automatically. "dvdv direct off" has approx. 98% compatibility, so it's widly used.
Please read the included ESR "readme.txt" for more info.
Originally Posted by ESR readme
Slim PS2 SCPH-70004 (v13) w/ FMCB, 3x Sony 8MB, 1x MaxMemory 16MB (Backup card)
I'm not available for FMCB installation service until I can guarantee a processing time of a few days again, sorry.