It is too new. It was just commercially released on PC last week. I'd wait a year and try again. I don't want to cut into sales of their title.
If you want to do something:
1) For Trails in the Sky, we could try updating the PSP version script with the latest one from the PC version
2) For Trails in the Sky SC, we could try updating the PSP version script with the latest revised version from the PC. Additional revisions to the script were made after the PSP gold master was made.