Debugging Joomla Site

We have a website in Joomla. There are two minor bugs that we need to be resolved 1) In the main page when the visitors click on the "Read More" for the articles they are forwarded to the article page however the article page still have the main page sliders which makes the visitors scroll down again. We want the page starts with simple format. 2) In our facebook posting we see a message that seems to be the default tag of the website. We need to rename the tag. You are required to summarize steps you have taken for us.