Did you actually delete everything in the blitz3d directory after copying it? Install Blitz (from scratch, not the update, but the initial install. You might have it on CD) and put it somewhere else like "c:\blitz3d"
I can't think of a single reason it wouldn't start. Apart from your internet explorer being corrupt somehow. As the blitz help depends on explorer it could be that. Try re-installing IE or installing the XP SP2 (which has security updates). This might solve it. Otherwise I haven't got a clue how to help, sorry.
I seem to remember there being a problem with explorer in a previous blitz version. There was a patch or something, but that was a looooooooooong, long time ago. Indeed, I think it might have been in a place far, far away.
I can't think of a single reason it wouldn't start. Apart from your internet explorer being corrupt somehow. As the blitz help depends on explorer it could be that. Try re-installing IE or installing the XP SP2 (which has security updates). This might solve it. Otherwise I haven't got a clue how to help, sorry.
I seem to remember there being a problem with explorer in a previous blitz version. There was a patch or something, but that was a looooooooooong, long time ago. Indeed, I think it might have been in a place far, far away.