Gmail using Selenium RC

{
// Login to Gmail and get the link
try
{
selenium.Open("http://www.gmail.com"); // Open Gmail Webpage
selenium.WaitForPageToLoad(sel_TimeOut);
selenium.WindowMaximize();
if (selenium.IsElementPresent("//a[contains(text(),'Sign out')]")) // If Already logged on, logout first
{
selenium.Click("//a[contains(text(),'Sign out')]");
selenium.WaitForPageToLoad(sel_TimeOut);
}
selenium.Type("//input[contains(@id,'Email')]", inv_InviteEmailAddress); // Enter Gamil User Account. GAMIL account should be set with HTML view
selenium.Type("//input[contains(@id,'Passwd')]", inv_InviteEmailPassword); // Enter Gmail Password
selenium.Click("//input[contains(@name,'signIn')]"); // Click on Gmail Sign In button
selenium.WaitForPageToLoad(sel_TimeOut); // Wait for web page to load. If page dont load after timeout test is failed
Thread.Sleep(Int32.Parse(com_UserThinkTime)); // Time taken by user to take action after page is loaded
selenium.Click("//*[contains(text(),'" + inv_InviteEmailSubject + "')]"); // Click on email with subject as pointed by variable inv_InviteEmailSubject
selenium.WaitForPageToLoad(sel_TimeOut); // Wait for web page to load. If page dont load after timeout test is failed
Thread.Sleep(Int32.Parse(com_UserThinkTime)); // Time taken by user to take action after page is loaded
selenium.Click("//a[contains(text(),'" + inv_InviteEmailRegisterLinkText + "')]"); // Click on link with text as pointed by variable inv_InviteEmailRegisterLinkText
selenium.WaitForPopUp(selenium.GetAllWindowNames()[1], sel_TimeOut);
selenium.SelectWindow(selenium.GetAllWindowNames()[1]);
selenium.WindowMaximize();
selenium.Type("//input[contains(@id,'user_password')]", inv_InviteEmailPassword); // Enter password
selenium.Type("//input[contains(@id,'user_password_confirmation')]", inv_InviteEmailPassword); // Enter password again
selenium.Check("//input[contains(@id,'terms_of_use_accepted')]"); // Accpet Terms of USe
selenium.Check("//input[contains(@id,'privacy_statement_accepted')]"); // Accept Privacy statment
Thread.Sleep(Int32.Parse(com_UserThinkTime)); // Time taken by user to take action after page is loaded
selenium.Click("//input[contains(@class,'sign_up_btn')]"); // Click on Signup button
selenium.WaitForPageToLoad(sel_TimeOut); // Wait for web page to load. If page dont load after timeout test is failed
Thread.Sleep(5000);
}
catch (SeleniumException selEx)
{
throw new Exception("GMAIL Something went wrong",selEx);
}
// End of Gmail
}