Please for all error give full detail description.
What error you see, when, what you did for that.
I'm having this warning message when i try to install real estate manager in my hosting
Sorry, what errors you see ?
Akeeba Backup Installer
Sorry, how Akeeba - connected to ours component ?
Would you like to clear the fields so that you can type in your new database connection information?
What you mean?
(i'm not php expert but i followed the instructions and requirements are correct php5, soap, curl, etc.)
Please show that to your host provider. If you do install joomla to professional hosting like hostgator or goddady - you wil not see these warnings