The tomtom device prompts me to connect the traffic receiver.How do I do that

Most traffic reporting is done over FM radio frequencies so it really doesn't matter whether it's rush hour or not, unless your GPS traffic receiver is being shielded by other traffic, but this is unlikely.
You can learn all about how this is done at http://www.gpsreview.net/traffic/ If the traffic receiver is external to the GPS, like with the Garmin NUVI where it's in the power cord, make sure it's not near some dense metal that might be shielding it.

started to work again with no intervention. This seems a service fault!

i have exactly the same problem TomTom 720 was working with Blackberry Curve 8520 but just stopped being able to download traffic and safety cameras

You can purchase a traffic receiver through Tom Tom here:

http://www.tomtom.com/services/service.php?id=44

or here:

http://www.tomtom.com/products/accessories/accessory.php?ID=804


The device depends on external transmitters broadcasting traffic data. I'm not certain that the service is even available in South Africa. Please check to make sure you can use it before you purchase anything.

because tom tom uses the bluetooth connection via your cell phone to obtain traffic conditions on the newer verision of tomtoms they use the rds signals 

Traffic is an optional service. You need to purchase a traffic receiver and sign up for the monthly service with TomTom. Details here: http://www.tomtom.com/plus/service.php?ID=3&Lid=4

Hi, I hope you've made a back up on your computer!!
If copy and paste have worked below is the restore instructions off the tomtom site

1. Reset your device.
   
   
2. Connect your device to your computer.
   
   
3. Turn on your device by pressing the power button for 5 seconds.
   TomTom HOME starts.
   
   
4. In TomTom HOME, click Add Maps, Traffic, Voices etc. and then click Items on my computer.
   Then expand Applications by clicking the plus symbol and click Add.
   
   

The TomTom RDS-TMC Traffic Receiver

my tomtom worked well the other day. have not use it for 5 days. try to turn it on today, does not work. try recharging for 2 hrs still the same, does not turn on. please help

I believe the tomtom 1 phones can't make hands free call. The bluetooth is used only for traffic adviseries thru your bluetooth phone.