how to insert a webpage using iframe

I don't know what webeasy is, but an IFRAME is a farely straight forward tag.

One thing to bare in mind, and I highly suggest you do, a LOT of the attriubutes I put on there will have no effect on the IFRAME without something like CSS, PHP, or JavaScript. When it comes to IFRAMEs, all you need is <iframe src="http://www.google.com/"></iframe>.

I hope I helped. ^^

One thing on top of what DDAoN said,

A lot of sites such as google docs have "Frame Busters" Meaning they won't load in a frame. just a heads up.