Playing an image sequence

Is it possible to "play" an image sequence on a texture plane? (I've seen those flames, or burning fire in Jonnee's age - I assume he did this with images sequences on sprites, or maybe video sequences)
So if yes, how can this be done?
I have already tried to play with image maps (e.g. a 8x8 map) and to do the sequences with IPO curves and the offsets, say 1 image = 1 keyframe, but this does not come out well in URU, not as expected;
then I tried to setup playing the image map with the Real-time properties in UV Image editor (tiles and anim stuff); it played well in the Blender game engine, but does not export to URU. Or I may have missed some steps, no idea.
Any hints in the right direction would be great.
So if yes, how can this be done?
I have already tried to play with image maps (e.g. a 8x8 map) and to do the sequences with IPO curves and the offsets, say 1 image = 1 keyframe, but this does not come out well in URU, not as expected;
then I tried to setup playing the image map with the Real-time properties in UV Image editor (tiles and anim stuff); it played well in the Blender game engine, but does not export to URU. Or I may have missed some steps, no idea.
Any hints in the right direction would be great.