This release comes from Dark_Kendox and FrEdDy, with a special thanks to Wololo, KiNgOfUnIvErS, psphakerwarrior, and Phantom91. Team ProjectXX kept this exploit on the d-low until some loudmouth ruined it.
Now it's likely the game will be pulled off PSN real quick, Sony will patch the exploit soon, and we're back at square one. So do yourself a favour: don't upgrade when Sony issues a new [useless] firmware update. With HBL in the works this exploit may serve a useful purpose for those currently running an unhackable PSP.
It works like this: Set your system language to English and copy the folder "ULES002810int" into PSP/SAVEDATA and h.bin to the root of your memory stick; run Splinter Cell Essentials, load the hacked save and press "Continue."