Well, some bugs were reported and here’s the crackfix from SKIDROW. Read the NFO for more informations.

 Repack Notes:                                                  
                                                                       
        We packed the wrong dll file. We apologize again :-(           
                                                                                    
        Crackfix Notes:                                                
                                                                       
        Some bugs were reported and they're fixed now. We apologize!   
                                                                       
        Replace the included files with these ones.                    
                                                                       
        We included an easter egg, try to find it ;)                   
                                                                       
                                                                       
        Saving Notes:                                                  
                                                                       
        If you have a savegame with you trapped behind a door, because 
        you returned to a checkpoint after you died, then you need to  
        restart a new game.                                            
                                                                       
        It's not possible to fix your save, as your save relay on old  
        packets that are wrong.                                        
                                                                       
        ────────────────────────────────────────────────────────────── 
                                                                       
        On with the game release information:                          
                                                                       
        Prince of Persia The Forgotten Sands is the next chapter in    
        the fan-favorite Sands of Time universe. Visiting his          
        brother's kingdom following his adventure in Azad, the Prince  
        finds the royal palace under siege from a mighty army bent on  
        its destruction. When the decision is made to use the ancient  
        power of the Sand in a desperate gamble to save the kingdom    
        from total annihilation, the Prince will embark on an epic     
        adventure in which he will learn to bear the mantle of true    
        leadership, and discover that great power often comes with a   
        great cost. Game features include:                             
                                                                       
        Classic Gameplay Reinvented: From huge-scale multi-enemy       
        combat to dizzying feats of acrobatic prowess in gigantic      
        environments enhanced by the Prince's ability to control       
        nature and time, Prince of Persia The Forgotten Sands will     
        push the Prince's prodigious abilities to unseen levels.       
                                                                       
        A Blockbuster Experience: Prince of Persia The Forgotten Sands 
        will offer players unforgettable set pieces made possible by   
        the advanced technology offered by the award-winning Anvil     
        engine. With all-out war at the gates of the kingdom, the      
        Prince's abilities will be challenged like never before        
        through the course of epic wow moments.                        
                                                                       
        Mastery Over Nature: Wielding powers of nature and time, the   
        Prince will have unparalleled mastery over his environment and 
        his enemies. The Prince will discover that harnessing the      
        forces of nature itself will prove to be a devastating         
        companion to his ability to rewind time.                       
                                                                       
        Return of a Fan-Favorite Franchise: Set between Prince of      
        Persia: The Sands of Time and Prince of Persia: Warrior        
        Within, Prince of Persia The Forgotten Sands will provide fans 
        a new chapter in the Prince of Persia universe and deepen      
        their understanding of the Sands of Time series.         

1. Unpack release

2. Mount image or burn it

3. Install

4. Copy the content from the SKIDROW folder on the DVD to your installation directory and overwrite