Sony Ericsson K700i no longer synchronises using iSync & MacOSX 10.4.6
How to Fix It!
Control-Click iSync and select "Show Package Contents"
From there navigate to:
/Contents/Plugins/ApplePhoneConduit.syncdevice/Contents/Plugins/PhoneModelsSync.phoneplugin/Contents/Resources/
Then find the MetaClasses.plist file and open it with TextEdit. Scroll towards the bottom (maybe 3/4 way down), and look for the following:
<key>com.sony-ericsson.K700</key>
<dict>
<key>Identification</key>
<dict>
<key>com.apple.gmi+gmm</key>
<string>Sony Ericsson+K700</string>
</dict>
<key>InheritsFrom</key>
<array>
<string>family.com.sony-ericsson.legacy</string>
</array>
<key>Services</key>
<array>
<dict>
<key>ServiceName</key>
<string>com.apple.model</string>
<key>ServiceProperties</key>
<dict>
<key>ModelIcon</key>
<string>SEK700.tiff</string>
<key>ModelName</key>
<string>K700</string>
</dict>
</dict>
</array>
</dict>
Make the one change I've highlighted above in red.