Updated TomTom app wont sync

Hi,

I have the TomTom app on my iPhone 4, but I cant update it directly from the device because I dont have enough space (1.46GB and the app is 1.8GB, but from reading around it needs a lot more than that temporarily while the app is updated).

I thought I would try to be smart by downloading the update in iTunes on the PC and then syncing it to the phone. The update did download OK but when I tried to sync iTunes with my iPhone, I got the message on the phone saying "1 item could not be synced. See iTunes for more information" and of course, there is no information whatsoever in iTunes. From reading around, it seems like iTunes doesnt keep a sync log file.

Now, my app looks like this:

and when I tap on it, it just says "Waiting..." forever... Any suggestions on how to get out of this? I dont really want to delete the app from the phone because I dont want to lose all the app settings (favorites, POI, etc...).

Many thanks in advance,

Arnaud

PS: apologies for the spelling mistakes, but the apostrophe key on my keyboard doesnt work anymore.

PPS: using the latest version of iTunes and iOS