No there isn't an update for David Bridgewaters book, but it is very usable for studying for the SCWCD5 exam.
Basically the exam SCWCD1.4 and SCWCD5 are not any different with respect to the specifications you have to learn. The difference is the way they ask questions: less cramming of APIs but more questions of how things work and more code-complete questions. (like what they did from SCJP1.4 to SCJP5)
Have a look at my summary (rancher notes section) if you want to use his book SCWCD links. I hope it can be useful to you.