Just joined it myself,got the 10 free 6x4 photos ( this is all i ordered),they are free to collect instore ( no credit card details needed ),or £1.50 postage.
I collected instore,so totally free plus 300 points too.... worth £12 in tesco deals :)
All new registrants to Tesco Photo receive 10 free prints when registering. There is no minimum order for receiving the 10 free photos. We will credit all new members who register between 10am on the 15th March and 10am on the 16th March with 300 Clubcard Points - this will be done on 17th March. Members who have not entered a valid Clubcard number may not receive the 300 Clubcard points
I can't see anywere it's states you have to order photos to get points ( can anyone)
so i guess you can get points for just signing up,i just ordered these along with this,as totally free anyway :)
But it's up to you what ever way you want to do this,just that some members are asking this :)
Info from poster pluves1:
For those having difficulty in IE make sure you download the software that is needed to upload photos. Takes a while for this to come up initially - without it the uploading wont work.