Where were the jars found in the first place? Ramses II was found among the 40 royal mummies in the Deir el-Bahri cache. If the jars weren't there as well, I'm going to have trouble believing that Ramses ever used them, even if they bear his name.
Also, did you notice the assertion that the guts in the jars probably came from somebody who lived 760 years after Ramses, but he was in the Greco-Roman era? That doesn't work in the conventional chronology, which puts the Persians 760 years after Ramses II, but it works with both the revised chronologies of Velikovsky and Rohl.
Hence the ping. :')
Valley of the Kings - KV7
Dariusz Sitek
http://www.narmer.pl/kv/kv07en.htm
The Tomb of Ramesses II and Remains of His Funerary Treasure
Christian LeBlanc
http://ourworld.compuserve.com/homepages/Gerard_Flament/ramstomb.htm