need quick talk through mysqll dump

I am trying to download my word press set up from one web host server and domain to upload to another domain and server (host) I apparently jave to download a backup data vase (which i think i have dione) and do a amysql dump to edit the file )i think) i am using mysqldumper as recommended but there appears no instructions (or at least for a dummy? like me) So basically am am asking if for $20 dollaes someone would talk me through this. It will probably be a minutes job for someone in the know as apparently the whole proces of switchiong from one host / fomain to the other is about 10 mins rhank you Antfal ## Deliverables I would like if possible gor somone to talk me through this over the Internet thank you antgal