Fertility and ploidy of Carefree Sunshine, Limoncello, and Vineyard Song?

Carefree Sunshine and Limoncello have yet to set hips for me. Are they triploids? If so, can I presume there is a decent chance of obtaining fertile offspring using enough of their pollen on a diploid?

If they are triploid, and I crossed on a proven fertile triploid mother, if said cross were to take, what are theoretical odds of di-, tri-, or tetraploid offspring respectively? I know for instance that Lemon Fizz is theoretically a fertile triploid, and I have gotten offspring using a tetraploid mate. Would that seedling most likely be a tetraploid from an unreduced gamete, or a triploid itself?

(I assume 4N x LF = probable tetraploid, but LF x 4N = just as likely triploid? Are my presumptions well grounded?)

Second Question: Vineyard Song’s two listed offspring use it as a pollen parent, but as a very double rose, anthers have largely been converted to petaloids. Is it not very seed fertile? (Only finding a couple pathetic anthers in each blossom after digging for a while.)

(I’m quite sure that was all poorly worded and not very comprehensible. I am way over my own head.)

Thanks!