Hi Rony,
Re: 1. There is a stored procedure called JobsDB_JobPostings_GetLatest. This has a line in it:
SELECT
* FROM [dbo].[JobsDb_JobPostings] WHERE postingdate >= (getdate()-7)
Change that line.
Re: 2. Best option I know is to use the database publishing wizard.
Open the database. <right click>. Select 'Publish to Provider' generate a script wth all the metadata to set up a new database, plus all the INSERT commands to insert the data.