How do I save the data from my Sprint Palm Centro even if it won't stay on?

[REBECCA]

While replying to an email a month and a half ago, my Sprint (NYSE: S) Palm (NSDQ: PALM) Centro went into a restart/reboot loop. This has continued ever since: whenever I put the battery into the phone, it just keeps restarting itself over and over and over again. The Sprint store said there was water damage because there was green stuff at the bottom where the phone connects to the hotsync cable, but it was never in water so I don't know how that could be. I tried performing a soft reset, warm reset, etc. I don't want to do a hard reset/erase the data because I need it - it wasn't backed up. Examples of data I need to get off the phone: photos; text logs; memos; draft emails in Sprint Mail; website favorites/history; contacts; calendar; tasks; etc. The store tells me there is no way to get the data off the phone, but I haven't given up because I'm desperate. Please help.