Import .utx textures from another EA's game

Hi!
I'm tryng to import a map of an EA games called "Harry Potter and the philosopher stone".
The map and the textetures are in the classic format of Unreal (maps: unr, Textures: utx Music umx ecc...)
I tried to open it with Unreal Editor 3 and Unreal Engine 2 but there's some error and the map don't run...
Anyone know how I can use these maps with some Unreal Editor or other program or to convert this utx textures in other format (3ds and maya for example)

Thanks anticipatly

I don't think it's anything that leave never my hard disk.
However thank u El_muerte.
If the moderator find this topic illegal they close it and finish of the story
alternatively I wish someone can help me...