The game may lag a little bit. Reason:
Celeron 1.7Ghz - Celeron's are low-cache, budget processors, made for internet browsing, minor editing of photos/videos.
ATI Radeon Xpress 200M - Video chipset. Made for running Windows XP nicely, but not for any gaming, not even Need for Speed...
512MB RAM - Recommended for the game, which usually means minimum