TOMB RAIDER 4 THE LAST REVELATION - I'M STUCK !!!! HELP PLEASE!!!!

I got a little problem in TR4.. It seems that there is no solution (not to me at least) to this.. I have to get past this blockade in the road in order to move forward and finish this level.. I can get there by foot but i need the jeep for the next level. Experts, please leave a comment before i blow up! :))) Thanks Jackie