This works in iSync 2.0 in Tiger.
ctrl click on isync and view package contents.
navagate to this file:
Plugins/ApplePhoneConduit.syncdevice/Contents/PlugIns/PhoneModelsSync.phoneplugi n/Contents/Resources/MetaClasses.plist
I would suggested saving a copy of this file in case you need to roll back.
open MetaClasses.plist in TextEdit and add the following text to it right before the V343c entry:
<key>com.motorola.V330</key>
<dict>
<key>Identification</key>
<dict>
<key>com.apple.cgmi+cgmm</key>
<array>
<string>"Motorola CE, Copyright 2000"+"GSM900","GSM1800","GSM1900","MODEL=V330"</string>
<string>"Motorola CE, Copyright 2000"+"GSM900","GSM1800","GSM1900","GSM850","MODEL=V330"</string>
</array>
<key>com.apple.gmi+gmm</key>
<array>
<string>"Motorola CE, Copyright 2000"+"GSM900","GSM1800","GSM1900","MODEL=V330"</string>
<string>"Motorola CE, Copyright 2000"+"GSM900","GSM1800","GSM1900","GSM850","MODEL=V330"</string>
</array>
</dict>
<key>InheritsFrom</key>
<array>
<string>com.motorola.usb-bt.0x22B8/0x4902</string>
</array>
<key>Services</key>
<array>
<dict>
<key>ServiceName</key>
<string>com.apple.model</string>
<key>ServiceProperties</key>
<dict>
<key>ModelName</key>
<string>V330</string>
<key>PhoneIcon</key>
<string>MOTV300.tiff</string>
</dict>
</dict>
</array>
</dict>
Save the file, then delete the pairing from the phone and the computer and repair.
Also, the phone was originally supposed to be called the v536 (a replacement to the v535), but got put into a v300 style case by request of t-mobile. But that's why it works if you care. Good luck.