What issues are you still having? Be sure to try installing with debug mode and maximum error reporting enabled in Joomla global configuration so errors can display. Your below topic mentions it just says "denied".
www.joomlapolis.com/forum/255-developer-members-support/244724-solved-8863-installation-refused?start=0#328427
Is that still the case? Maybe try contacting your host as I've never seen the database just erroring with "denied". That usually means the database access permissions are not correct. For example the user you supplied in Joomla database configuration may not have permissions to modify tables.