Does anybody know if I can save my texts on my Sony Ericsson k800i onto the sim card and the phone? Thanks

Is this any use? http://www.sonyericsson.com/cws/supp...90?cc=gb&lc=en

Alternatively you might be able to back them up onto your PC if you have the sync software. As if you put the SIM in a modern phone, it may not be able to retrieve those messages from the SIM card.