Ive just found a very good ruby script plugin for google sketchup which allows direct ase export for importing into Alice. Unfortunately it cannot export textures.
1: Download and install plugin attached below (
Source website).
2: Open google sketchup.
3: Make or open or download your model.
4: DO NOT ADD TEXTURES.
5: Alice hides faces when the reverse is facing the camera, so for all faces that you want shown that are currently light blue (default style) right click and select reverse face, this will make them switch around so the other side of them is now hidden.
6: For faces that you want both sides showing just make duplicate faces both facing outward close together.
7: Either select nothing if you want to export all or select the component/group you wish to export only.
8: Select SU2ASE4UT exporter, then export from the plugins menu.
9: Wait until the popup reads that its done.
10: Locate and import it into Alice.
11: Colour and texture as appropriate.
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I have mostly moved on from Alice, but may still respond to messages if important [¬º-°]¬