Blooming Phal needs repotting!?

[trancentrees]

So I've taken some pictures and had a closer look in the daylight...
After rummaging through the top bark, which looks very dry, there is definitely still active root growth, with green solid looking roots. I think it needs a bigger pot, so my question remains, can i repot it without hurting the shoots and flowers, and how on earth do I do it?