All down strums for the first bit (and the odd other bit in the song). And this one should see you through:
d – d u – u d –
Twice for each chord in the verses. Once for each chord in the bridge and chorus (except the last ones).
It’s always a bit of a fag moving stuff from piano to uke but this just about works.
If you don’t have a 15th fret, just go with a standard C chord at the end.
(Holy crumble, Gary Glitter is on that album – maybe don’t buy the whole thing).