I have not used the Wrox book, but certainly Why's guide is the accepted introduction to ruby, and the Agile Dev with Rails book is the best way to be learning up-to-date stuff with 1.2.
As for this problem, %5 is a url-encoded backslash. Seems like a string escaping problem... I would be curious to back-trace where it comes from. Is the backslash in the form tag on the original page? Is it in the url visible in the browser? Or does it just show up in the params array? I suspect it's in the original page, in which case it would help if you could post the code generating the form.
Hope that helped,
Adam
Jeff Beddow wrote: