Use MyPhoneExplorer, its a good tool you can backup and restore contacts, SMS, Task, etc. Contact list can also be exported to excel, csv file.
You can download it from here,
http://www.softpedia.com/get/Mobile-...Explorer.shtml
I guess there is no way to increase SMS storage in DB2020 phones however its already over 1000 I guess which is enuf for me.
Hope this helps.
hizzzzzzzzzz
rattlesnake