Folder in a folder.

Hello guys. Please help me with this one. I am having a hard tym in revising this.. I want to create a folder (with last name and first name) inside a folder (with date uploaded) and save all files that I have uploaded.
The following codes has only 1 folder with last name and first name. There is no folder inside the folder. THank you somuch.
void SaveFile1(HttpPostedFile file)
        {
            string savePath1 = "c:\\Upload\\" + txtboxLName.Text + txtboxFName.Text + "\\" + DateTime.Now.ToString("dd-MM-yyyy");
                string fileName1 = FileUpload1.FileName;
                string pathToCheck1 = savePath1 + fileName1;
      & ...