Delphi - logging in to webpage from code

I am using Delphi 7 and require some help with a problem, and yes, I have searched everywhere for an answer, yet the supplied code isn't documented , so I have no idea how it works or how to adjust it to fit my needs.

What I am trying to achieve is to log in to the website http://kissanime.com/login ..

The problem I'm experiencing is that I need to stay logged in while my program does some work on that website's HTML ( Basically I want to parse out the download links of a certain series, but I need to be logged in to view said links )...

I have no code that I can supply as none of the code that I saw while searching for a solution didn't make much sense, however, I have an idea of what needs to be done. I think that using some POST method to the website to supply it with the username and password would be a start, from there on out, I'm not sure whether or not I'd stay logged in.

I may be overcomplicating this problem and there is perhaps a simple way of achieving this, and that is why I have turned to the one site that I usually get all my answers from, I hope that I explained the problem well enough and that I can find some help..

I Do not expect source code , since I did not supply any here, but even some useful links that could explain this process to me would be much appreciated.

Here I have created a simple collage of images to just solidify my explanation of the problem :

Thank you for your time and I hope that I can find some clarity on this subject!

You need to first Get() the webpage that contains the webform and let it generate whatever cookie(s) it needs, and let TIdHTTP capture it/them (if you do not attach a TIdCookieManager to the TIdHTTP.CookieManager property, TIdHTTP creates a TIdCookieManager internally), then you can submit the desired webform data to the appropriate webpage and TIdHTTP will include any relevant cookie(s) it is currently holding. For example:

// get cookies first...
IdHTTP1.Get('http://kissanime.com/login');

// now submit the webform...
Params := TStringList.Create;
try
  Params.Add('username=' + UserName);
  Params.Add('password=' + Password);
  Params.Add('chkRemember=1'); // <-- omit this if you do not want to enable the webform's "Remember me" option
  Params.Add('btnSubmit=');
  Params.Add('redirect=');

  IdHTTP1.Post('http://kissanime.com/login', Params);
finally
  Params.Free;
end;