We all are aware of it. The issue of BBM bringing up your stickers as the default. It's annoying as hell and people voiced their opinion to BlackBerry and BlackBerry responded with another update to help fix the dissatisfaction that people showed. It really hasn't worked out as BlackBerry has wished.
Seems that BlackBerry made a compromise in the update. If you have already entered text in the BBM message box and hit the emoticon icon, emoticons show up as the default. If you want to just send an emoticon and no message, the stickers show up as the default. People are still up in arms about it and saying that BlackBerry is all about the money and just want to push the stickers to sell more of them.
Whatever the case, the update brings the version of BBM to 10.6.5.10 and you can choose to update or wait to update. If you complain enough, maybe BlackBerry will bring back the emoticons as the default no matter what.