Nigel,
F & M & Stellarium Does work with almost all DSO's, stars and other objects, but you have to speak the correct language (for want of a better expression).
I Put the Beehive cluster into Google (couldn't remember what object it was LOLOL), this told me it was M44, went into Stellarium, used the search box with 'M44', Stellarium found it in 'Cancer' & went to it, I hit 'Ctrl - C' to copy current selection, went to SGP's F & M wizard, hit 'Ctrl - V', SGP pasted the following into the 'Object' box auto style:
Praesepe (M 44 - NGC 2632 - Cr 189 - Mel 88)
I deleted everything except for 'M44' (works with NGC 2632 also, Simbad didn't like the Cr 189 though)......Hey Presto....I have the Beehive Cluster on screen ready to frame.
Same sequence with the Starfish cluster........
Simbad doesn't recognise DSO 'Common' names like 'The Beehive Cluster' or 'The Starfish Cluster', this is not a fault with SGP but one with Simbad itself. As a matter of fact, if you use Stellarium's search box and input 'The Beehive Cluster' even 'IT' wont take you to the correct object, instead it will take you to the constellation of Serpens at the opposite end of the sky and select an object called 'The Summer Beehive Cluster' which is actually IC 4665 / Cr 349....Completely different object altogether.
'The Starfish Cluster' in Stellarium will slew your mount to the southern hemisphere near a constellation called 'Mensa', If your in the northern hemisphere then be very careful especially if you don't have horizon limits enabled, this could murder your scope setup if your not careful.
Leave Common names alone and stick with official designations mate !
Hope this helps
Paul