If your remote PC is using Windows XP SP2, you may have a problem with first time access. Follow the step below, it will help you solve the problem.

Close every program, and go back to desktop.

On the desktop, usually you should see IE logo there.
Right Click on top of IE and left click to choose properties
( = open Internet Options)

Or, you can go to Start -> Settings -> Control Pannel
Choose Internet Options

When Internet Options is open,
you should see Internet Properties.

Go to Security tab on the top.

Select Custom Level button

Then, you should see Security Settings dialog box.

Make sure
Automatic prompting for ActiveX controls
is set to
Enable

And also, Make sure
Download unsigned ActiveX controls
is set to
Prompt

Click OK

Then, You should see Warning! message.

Don't worry. Just click Yes to change

Now, click OK to finish Internet Properties setting.

You should go back to desktop now.

Open IE and type your Webcam Address in the address bar.

You should see the Webcam page.

After for awhile, you should see Internet Secuirty Warning Pages.

Click Install

Then, you should be able to choose display windows
and click submit to continue...

Reference Picture.

These pictures are same as the first row display.