Considering that x3: Reunion is one of the best games I played (and I played games since Spectrum 16k

So, is Rolling Demo some kind of a preliminary test of how will TC perform om my system? Does it mean that it will generally run the whole game in the same way as in the Rolling Demo?
Thanks!
My specs are: (just mentioning the "summary")
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System Information
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Operating System: Windows XP Professional (5.1, Build 2600) Service Pack 2
System Manufacturer: NVIDIA
System Model: AWRDACPI
BIOS: )Phoenix - Award WorkstationBIOS v6.00PG
Processor: AMD Athlon(tm) 64 Processor 3500+, MMX, 3DNow, ~2.2GHz
Memory: 1024MB RAM
Page File: 465MB used, 1994MB available
Windows Dir: C:\windows
DirectX Version: DirectX 9.0c (4.09.0000.0904)
DX Setup Parameters: Not found
DxDiag Version: 5.03.2600.2180 32bit Unicode
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Display Devices
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Card name: NVIDIA GeForce 7800 GT
Manufacturer: NVIDIA
Chip type: GeForce 7800 GT
DAC type: Integrated RAMDAC
Device Key: Enum\PCI\VEN_10DE&DEV_0092&SUBSYS_2051107D&REV_A1
Display Memory: 256.0 MB
Current Mode: 1024 x 768 (32 bit) (60Hz)
Monitor: Plug and Play Monitor
Monitor Max Res: 1600,1200
Driver Name: nv4_disp.dll
Driver Version: 6.14.0011.7824 (English)
DDI Version: 9 (or higher)
Driver Attributes: Final Retail
Driver Date/Size: 10/7/2008 13:33:00, 6058112 bytes
WHQL Logo'd: Yes
WHQL Date Stamp: n/a
VDD: n/a
Mini VDD: nv4_mini.sys
Mini VDD Date: 10/7/2008 13:33:00, 6133856 bytes