Removing stuck or seized seatpost?

Thank you, you mean the one that suggested melting it out with caustic soda? Yes I had read it and was wondering if there might be a way of moving it and actually have some seatpost left when I was finished. BTW you know you're allowed to post stuff about bikes on here as well as correcting everyon else's errors.

That right is it? Well here you go from last September, you lazy twat...
http://www.londonfgss.com/newreply.php?do=newreply&p=382653&stripquote=1

Now you see what you have done there is linked me to a quote that says 'hacksaw through the seatpost horizontally and vertically'. As you will see from my quote above I would like to have a usable seatpost after getting it loose. See underneath for a friendly bit of useful, unabusive advice.

This happened to the missus' bike not so long ago and none of the methods I've read worked, so I got a 7 foot long sash cramp (woodworking thing) and gripped it with that, and with an unpleasant cracking noise it came loose.
...the point being that it's good to get something with a fucking long lever, like wedge a broom handle under the saddle and then twist the bastard, or maybe turn the bike upside down, get a fat mate to stand on the saddle and then twist the rest of the bike.

Me and My dad used a huge vice attached to a bench, with one of us at each end of the bike giving it some welly until it came loose.