Internally you can see all the changes you are making to your pages. However, publicly on the blog itself, none of the changes come through, all you see are pages that are dated for the day when you installed the plugin. The only pages that update are the standard blogroll pages. Custom pages like "home" and anything else you make, don't update. They will show only if created fresh and then only once, you can not update them. IE, they'll update on the back end, but only their initial version will show on the public side.
sadly this is a huge deal breaker.
all you have to do restore the functionality of your site is to deactive 123linkit.