Xperia Ray :: Its Not Working Properly After Flashing And Rooting?

My phone came with GB 2.3.4 build .62 which is hard to root. So as the above guide directed, I downloaded a .42 build firmware, CE(Central Europe perhaps? I don't know) and tried to flash it using flashtool. I disconnected the phone from the PC in between. My phone wouldn't boot. Then I used SUS and updated it to ICS, making the phone work. I then flashed it to GB .42 patiently, and with success. Alas, problems started immediately. Many processes such as media, calender storage, acro etc came up as stopped working. Even after selecting force close they would keep appearing. I cleared the respective cache/data and the notifications stopped. Then I rooted it using Doomlord's toolkit, and updated to .62 via OTA, keeping my root. A few things have changed. The keyboard name is the same, International keyboard, but it is different and I don't like it. Camera is not working. Screen goes blank if I open the camera. Messaging does not work and the messaging app crashes as soon as I open it. No contacts are found, despite importing them again. (They all show up when using the import from SIM option, it says importing is done but they are nowhere to be found). Google search is not working and it crashes too.