Well, if I recall the latest version of software for the 7230 was from Cingular. You can download it from
https://www.blackberry.com/Downloads...E4F82F9F00E7D4 and install it by deleting the vendor.xml file (if you don't know where to find it search your C drive)
As to upgrades RIM will not be upgrading software for devices that have less than 32MB of memory so your 7230 will not receive any software upgrades in the future.
SMF