I have checked the webcontrol with the webpage i have developed, it doesnt fully loaded in webcontrol, but it does in IE. I have got script errors while loading webcontrol from visual studio- "object doesnt support property or method". But when i load the same url in IE it loaded without any error.
I couldnt sort out the issue, pls help me out.

IE != Visual Studio browser control. It's a very thin shim only really used for rendering pure HTML. If you want more advanced functionality I would look at using WebKit or Chromium.