Hanging problem on Samsung SGH I-450, S60 V3, FP1

It installed properly, connected to Internet and d/l around 900 kb. Then some message like "Do not use while driving" appeared and all keys blocked. Thankfully I had used a Task Manager but still it took around 20 seconds to get the control back and I could kill Bluewhale. I rebooted and ran again but the same problem. It freezes all the keys so that I could not make use of any options, if they were there. Moreover it consumes too much memory and I got my phone slowed down. From 11.5 Mb to a lowly 6.5 Mb, which is quite whopping I must say.
Though the program itself is bulky still if some functionality could be added to join to Windows Hotmail/Live it would be great. Because most of the email programs that we use free, do not supply settings for external programs.
I feel that if these functionalities are supplied as add-ons that could be used optionally, it could remove much code and be slimmer.