tomtom go 700 latest version and maps?

Hi,
It's been a long time since i've played with my tomtom go 700.

details of my device:

ttgo.bif:
DeviceName=TomTom GO 700
DeviceVersionHW=GO 700
DeviceSerialNumber=xxxxxxxxxx
BootLoaderVersion=54201
ApplicationVersionVersionNumber=7903
ApplicationVersion=9183

Map(s):
X:\Western_Europe_1GB_830_2306\
X:\Eastern_Europe_945.6174_810cs\
X:\US_-_Southeast_Region_710_1583\

Storage:
Size 2379MB, Free 819MB

I've ran the fastactivate, but I cannot see the eastern europe map when I select map.
What do I need to do to get it to show? or what eastern europe map is compatable with my version?

Thanks :)