First, read through the ForgeWorld "Working with Resin" Info.
http://www.forgeworld.co.uk/Downloads/Product/PDF/R/resintips.pdf
It is very likely that the stuff you bought is a knock off, but the info for the genuine
FW resin models will still apply.
Anything with insufficient glue surface can benefit from a pin. Since the model is so big, thin bendy wire is of course a no-go. I'd suggest using beheaded nails of sufficient thickness and length. Obviously you need a handdrill with drillbits of matching diameter. Using some pliers to add some texture to the nails gives the super glue more purchase.