Sunisa Lertpakawat's book Thaksin, Where Are You? has been an instant best-seller in Thailand, and demonstrates how popular Thaksin remains following last year's coup. Sunisa apparently travelled to London (where Thaksin is currently living) of her own volition, without knowing where Thaksin was or how to contact him. Then, while riding on a London bus, she saw Thaksin's son Panthongtae on the street, and he took her to their house.
If that seems like too much of a coincidence, it probably is. It's more likely that Thaksin organised Sunisa's trip and granted her a pre-arranged interview. The book itself is essentially a Thaksin fanzine, and doesn't add anything to the post-coup political discussion.