Hi pedsptmlso,

I am not sure about other countries, but here in Ireland there are still some vacancies for senior paediatric physiotherapists. To get registered you should contact the Irish Society of Chartered Physiotherapists (iscp.ie). Depending of where you got your qualification they will tell you if you need to do an exam or do a clinical placement, or maybe it'll be enough with your present qualifications.

A few places you could search to see if the have openings:

Central Remedial Clinic, Dublin
Enable Ireland
Crumlim hospital, or our lady's hospital for sick children
Temple Street University hospital
Tallaght hospital - pediatrics

If you do a search on the web their contact details should come up.
Hope this is of help. I've been working here in Ireland as a paediatric physio for 5 years now, and I love it.
I don't know of a general pediatric physio site, sorry.

All the best,

Eva