Nope, those readings look ok to me.
Gluing capacitors to the board is common practise given their physical size and potential for movement. Whether or not the black gunge is the actual glue is debatable - not something I can go into in detail without seeing/smelling it for myself (capacitor gunge from leakage has a known 'scent' that experienced engineers can sniff out).
Using the white silicone adhesive is, however, a common method but since it WASN'T used on the big capacitors it seems reasonable that some other version of glue was.
The capacitors DO 'look' to be ok, they measure the right value but their ESR may be the main cause for the problems you're seeing - that said there are other potential problem areas that would need to be isolated individually to prove otherwise. There are two low voltage regulators (each on their own heatsink) either one of which may have gone dud, the main amp driver device (chip) could be shorted etc. Best way forward would be to test the ESR and refit if ok, power up again BUT with the two low voltage regulators isolated, the amp chip isolated and the output transistors removed then fit/test the bits/sections going from the main smoothing capacitors to the output transistors.
Somewhere along that route you will discover the PSU powering up properly, no fuse blowing etc. This might all be possible by selective removal of PCB link wires and/or track cutting but I won't go there as it would take an age - it's something quite easily resolved with the right application but I'm sure, if you keep up the determination, you will get there yourself anyway.