Yes, it works the same way--enlarges the whole page, including pictures. So if you choose 150%, the page will be a little bigger than what you have now at 140%. I have my zoom set at 125% and it stays that way even after I close the browser and reopen it. But I don't know of a way to adjust the size permanently just for one website.
Also, if you just want to enlarge the text, not the whole page, do this:
To change the text size, open Internet Explorer. Then press the Alt key to display the menu bar. Choose View, and then Text size. Choose to make text larger or smaller than the size on the screen.
"Dragons were never gone. They were just invisible and very, very quiet." ~ M'aiq the Liar (Skyrim)