Hi Bigred,
I had a look at the phone specs at
LG LG260 Cell Phones & Mobile Phones - LG Electronics US, and it doesnt look to have a supported OS, which means you are out of luck. I would recommend checking out a SIM card recovery tool if you want to at least read deleted texts, but I noticed in the overview that this phone is for CDMA networks, so a SIM card recovery tool wont work either.
Only other options are to unfortunately buy a supported phone, but that might be going a bit to the extreme.
Good luck.
SPG