android pos system fix and improve

this app was created by another freelancer. somehow the programmer has left the job. i need someone to 1. backups and restore, the old guy has made backups already. but then i am not sure if the backup is working or not. you have to check it the backups is working. backups should be separate customer db and sales db. and make a restore part for me. 2. the problem with next not working when going back from the address entry to order entry 3. those dogs, back door regular customer are not showing on the im message. only ob will show now. i need those to be send to my driver. 4. exported csv is a empty page on sales and customer need to be fix. 5. check app works on bigger and smaller screen. the phone number entry screen doesn't work properly now. this app was design for archos 5it. i want to know if this app will work on other machine. [login to view URL] ob in the address page is a $5 out bound charge. i found that the out bound will not work if the ob is not check at the first time address entry. 7. i need some fix on the edit driver feature. now, i want to add im for a driver, after the e-mail address is enter, and try to send the order to driver, there would be a "send chat invitation to " warning box. i need that fix in order to send the order. 8. i need to add one more button on the order at the main page. the tab is for im sending order to driver. 9. there is a bug need to fix. sometime when a page is finish, and press next page. the app will flash in black color and then jump back to the page before or jump to the main page. 10. for the cancel order, when i hit the tab - a box pop up and ask cancel order yes or no. after that there will be another box "return order items to inventory yes or no" can u remove return order items to inventory box and go straight back to the orders list. all inventory should return automatic. when the app is finish, i need to test it out for 3 weeks in order to check buds. after that the money will release full.