Hi

I have no real idea how to upgrade my old TomTom XL... I am basically looking into how to load updated maps for North America, in particular Canada... Pls help

I noticed a number of people copied their ttgo.bif file...
Mine is as follows:
[TomTomGo]
DeviceName=TomTom XL
DeviceVersionHW=ONE XL (v9)
DeviceSerialNumber=deleted
DeviceUniqueID=deleted
RamDiskVersion=20080529
BootLoaderVersion=55011
LinuxVersion=190943
ApplicationVersionVersionNumber=8010
ApplicationVersion=9369
UserLanguage=English UK
UserName=deleted
LastConnectionTime=Never
GPSFirmwareVersion=
BuiltInColorScheme0=Belgica
BuiltInColorScheme1=Brittanica
BuiltInColorScheme2=America
BuiltInColorScheme3=Germanica
BuiltInColorScheme4=Australia
BuiltInColorScheme5=Deuteranopia
BuiltInColorScheme6=Greys
BuiltInColorScheme7=Antarctica
BuiltInColorScheme8=Africa
BuiltInColorScheme9=Astra
CurrentColorSchemeBuiltIn=0
CurrentVoiceInfo=Samantha
CurrentMap=USA_and_Canada
CurrentMapVersion=715.1728
CurrentHomeLocation=
Traffic=N
CurrentFuelpricesType=
CurrentFuelpricesTypeString=
CurrentFuelpricesLastFullUpdate=
ValueRatio=B29v6MkkBR6NqBf6wg==
Features=PlusDownloadDynamic,PlusDownloadGeneral,PlusDownloadMap,PlusDownloadPOI,PlusDownloadScheme,PlusDownloadUpgrade,PlusDownloadVoice,PlusDownloadRingTone,PlusMessageNotification,PlusPushChannel,PlusTraffic,PlusWeather,PlusEphemeris,PlusBuddies,PlusMobileSafetyCameras,PlusRoadConditions,PlusFixedSafetyCameras,PlusFuelPrices,HDTraffic,PlusOnlineCamera,PlusTripReporting,HomeBackup,TTS,TTSCompressed,TTSNuance51,Newyork,Newyork1Dot6,Itinerary,Caymann,Durham,CarSymbol,RDSTMC,Prague,SDSlot,InternalFlash
SupportedPatchTypes=1F
NrSupportedErrorTypes=132
UserPatchDatVersion=102
CompressedPatchVersion=150
MapServerPatchDatVersion=104
DeletedPoiDatVersion=200
ServerLineIndexDatVersion=102
ServerNameIndexDatVersion=102
MapShareSupportedProviders=203
CharacterSet=Latin-1

It is a 1 gig unit, with no external memory...Any help would be appreciated.

Simply check the 915 and 910 map threads for available maps and follow the instructions provided.
We have a tutorial section as well.
With a bit more reading you would have noticed how to post your details properly - I edited your posting accordingly.

Sorry about the mistakes with my post... You are quite correct that more reading on my behalf would have help & I am also sorry for this...
I was overwhelmed with all the information that is available, along with zero knowledge regrading upgrading my device.
Thank you for pointing me in the right direction