Whopity, thanks for your reply. Indeed the CAA do provide useful documents, and having read it myself there is nothing in the Lasors about all the places in the EU that provide the FI Refresher courses, and thus I asked that question. Same as the person that started this thread.
There is nothing said with regard to being current on another ICAO FI rating. There is only mention for the initial conversion of a ICAO FI and doing half a JAR course. Compare the situation with if you have another ICAO valid IR, the 5yrs clock can go from that. So again I thought I might ask on that one.
Thanks for the info re the current flight test fee, and I can also add for anyone reading this in the future that there is a £84 CAA fee too for re-issue when lapsed by 5yrs.