If you are using your own theme, temporarily switch back to default theme or change the name of your adminhtml theme and then check to see if the browse/upload button is there. If they are there then you have at least limited the problem to somewhere in your admin theme files.
I’m using the default template unfortunately and I replaced the entire adminhtml folder and still cannot see the problem. I’ve even used the 1.1.7 adminhtml folder, and still cannot upload any images. I really need this to work in case anyone can please help.