Updating Sony ClieTG27 to Palm TX

Hello,

I hope someone can help me. I run 2 Sony Clies TG27 with 2 diaries and sync them as 2 into one Palm desktop as different users which has worked for years no worries. However I have now purchased 2 x TX units to upgrade and the updated desktop will not install and update the on top of the old version of Desktop as it suggests it will. I have tried uninstalling, no avail. It just stalls at configuring system files. It says it will just upgrade the system but does not.

Can anyone please help on this one as driving me mad! Also the TX does not pick up wi-fi in the house, any reason for this???

Many thanks.

Phil..