I HAVE DOWNLOADED AND INSTALLED IT BUT CANNOT ACCESS IT .HELP PLEASE

AS ABOVE MOST FRUSTRATING

Why do you yell? IN NETIQUETTE, WRITING UPPERCASE IS CONSIDERED SHOUTING!

And you are also frustrating potential contributors. How do you expect we can help you? Apart from tagging base, meaning you have problems with the database component, you did not supply any information on your OS, LO version and what procedure you followed to install.

Read these guidelines, then edit your question and its title.

In addition to the above, learn to ask good question.