FIX INTERNET EXPLORER

Hello,
Following a security update for Adobe Flash Player (at least I think it's due to this update), I can no longer access GOA games on the Orange browser. After choosing the game, when I select the game room and "enter" it, the following message appears: "a software must be installed in order to launch this game". It involves the ActiveX Control software. Then the info: "click on the yellow banner that appears at the top of your browser to open the menu", but this banner does not appear on Internet Explorer, and therefore I cannot install ActiveX Control. I had Internet Explorer 7.0 and installed, without uninstalling it, Internet Explorer 8.0, and the result is still the same: the banner indicating that ActiveX Control needs to be installed still does not appear, and I cannot enter the games. Is it possible to uninstall Internet Explorer 8.0 to revert to the previous version, to uninstall it and reinstall it without running the risk of causing problems for the proper functioning of the browser afterwards? I thank anyone who would kindly help me, if there is another solution to repair Internet Explorer 7.0 or 8.0? Knowing that I have already restored the advanced settings of the browser.
Thank you in advance to anyone who can assist me.
Sincerely.
G.M.

Configuration: Windows XP Internet Explorer 8.0