Oh, sorry about that. The error is:
1>Main.obj : error LNK2001: unresolved external symbol "public: class sf::Http::Response __thiscall sf::Http::SendRequest(class sf::Http::Request const &,float)" (?SendRequest@Http@sf@@QAE?AVResponse@12@ABVRequest@12@M@Z)
#include <iostream>
#include <SFML/Network.hpp>
int main(int argc[],char *argv[])
{
sf::Http::Request Request;
Request.SetMethod(sf::Http::Request::Post);
Request.SetURI("/");
Request.SetBody("");
Request.SetHttpVersion(1, 0);
Request.SetField("pageUserId","682635");
Request.SetField("commentTitle","hi");
Request.SetField("commentContent","whatsup");
Request.SetField("SecCode","");
sf::Http Http;
Http.SetHost("www.blogtv.com");
Http.SendRequest(Request);
return 0;
}