Scripts for posting products in classfieds

Hi, i need 4 scripts: Product updater that will take product xml from my site and update the db. Product poster that will: 1) go to classifieds site(i'll provide the account) 2) fill form using data from xml and make a POST method. 3) mark item as posted in db so it won't be posted again. Product actualizer that will click the link with the last item in our account to actualize it(it will top up in classfied directory) Product deleter that will delete product from classfieds site if item can't be found in my xml. Scripts can be written with anything that runs on linux server, they will be run via cr