You dont need to reflash it. Just install the mem card manager on the cd and thats it.
To install a program go into notepad and type in this text below.
CP cdrom0:\HDLOADER.ELF;1 mc0:HDLOADER/HDLOADER.ELF
You can change it to whatever elf file you want to install it. You want to save it as install.cnf. I hope this helps.
scph-50001/n v9 matrix infinity fw: 1.91
AMD Opteron 165 Powered!
Burner: NEC ND-3550 v1.Y6 RPC1
Next Consoles: PS3 60 GB and PSP Entertainment Pack