Simply SSH into your phone and follow this pic...Its pretty simple:

In the picture below I have the screen split with both the properties window to the right and the main LevelData image that surrounds it. You'll see that I've chosen examples of the H3X Pack. You will see the folder and then down below that, you'll see its other component file at the bottom arrow. Now, right click on the "folder" and choose properties, then change the permission to 0755, its probably at 0700. Then put a check in the "set group, owner and permissions recursive." Then finally, right click on the last arrowed selection, which is the other H3X file, and make sure its permission is set to 0755. MAKE SURE YOU HIT THE "OK" BUTTON AFTER YOUR DONE SETTING PERMISSIONS...

After that...at the top of your WINSCP window, choose "Remote" and then hit "Refresh". Then grab your iphone/ipod and open up your iphysics and it should be there now. Now do that to all of the iphysic games you download into the LevelData folder.....bam, you're playing in no time flat. Hope this helps...