is this possible and how can i do it? The maps are a bit antiquated with the software that is installed and updates for it are no longer available so im hoping i can just install TOMTOM 7 to it...can someone please guide me in the right direction to make this possible?

Here's the useful bits of the TechSpec....

OS = Microsoft Windows CE. NET 4.2
CPU = ARM9 192MHz
Main Memory = 64 MB
NAND Flash = 64 MB
GPS = Centrality GPS 12 Channels
Sensitivity – 159 dBm
Internal Active Patch Antenna
Input = Touch Screen
Display = 3.5” Color TFT LCD
320 x 240 / 65K True Color

I guess you're start point is looking at an old WinCE Navigator OR a WinCE upgrade..