ok, apart from the waypath hack i dont think wp has any hack that does related post thingy. and waypath shows the related posts generally... not the same blog. so i had this idea for any one who is interested and have some time to make a new plugin sort of a thing.
we can have a keyword sort of entry thing for a post. the hack would search the database for that keyword and output the related post headings under the post under a heading with a name like "related post:" or anything like that.
hopefully this make some sense. now why would not i do it? coz i am not a programmer. i just get weird ideas. :)