Old wallets will stop to work at 44100, it will be at 5AM EST 26/03/2015 (or 10AM GMT 26/03/2015).
Please update wallets BEFORE that time. Ofcourse you can update your wallet now and tomorrow it will be smoothly switched to new PoS-interest.
You can find new wallet in OP(opening post)
To update wallet:
1) backup your wallet.dat
2) shutdown Intellect-qt.exe
3) substitute old Intellect-qt.exe with newer one
4) In case of any troubles remove all files except wallet.dat and run Intellect-qt.exe again.