Hmm, let's see.
I used to have an example program to spam a phishing site. It should answer your questions:
PHP Code:
program New;
var s:string;
var i:integer;
begin
InitializeHTTPClient(true,true);
AddPostVariable(0,'name','Vuile');
AddPostVariable(0,'lastname','Gristenhond');
AddPostVariable(0,'card','13371337');
AddPostVariable(0,'expm','13');
AddPostVariable(0,'expy','1337');
AddPostVariable(0,'pin','1337');
repeat
s:=PostHTTPPageEx(0,'http://isp.zsc.nl/css/cgi/pub/update.php');
if s <> '' then
begin
inc(i);
writeln('LoL! '+inttostr(i)+' times.');
end;
if s = '' then
begin
writeln('Fail.');
end;
until false;
end.
If questions remain, feel free to ask. Why, if I may ask, do you want to use this?
Edit: If you want to open a webpage in a new screen, use OpenWebpage('http://www.villavu.com');