Have you tried making your browser full-screen? That's what I have to do on our HTPC to play on our TV since the resolution is just a bit too low for the game.
Here's a tip, though: Firefox, at least, won't let you full-screen while you're focused on the game itself, so open another tab (the skill tree works great), full-screen it (F11), then Ctrl+Tab to the game and enjoy your bottom row of items.
Full screen is the best way, but I get some Flash crashes that way. I also find that turning off the status bar and all toolbars gets me close enough...
Trouble with full screen is that when you go to skills or garden, and then return to actual game, the browser opens up a new instance of the game and you are running the game in several windows at once.... hence Flash crashes.
Have you tried to change your screen resolution? For example, 1024x600 is default on mine, but 1024x768 lets me scroll down to see more. Not all netbooks will let you do this, but it's worth a try.