(...) I'm not reading through the the whole of this link, but i believe that they were supplied to the Sovs supplied fully kitted out including small arms? (...)
Not initially. The early shipments of American tanks which arrived in the Soviet Union were not ready for combat. They had no spare parts, no tools, not enough ammunition, not enough spare track, were often missing their radios and machine guns, and in many cases were non-functional due to mechanical problems. The Soviets were often forced to strip some tanks of parts in order to make the others functional enough to be sent to the front. Once at the front they were of limited usefulness because once they ran out of ammunition they couldn't be resupplied.
The Americans shipped the tanks to the Soviets the same way they would have been shipped to the American army. The American army receiving the tanks was expected to order all the required ammunition, spare parts, tools, and other bits and bobs through the army supply chain, and then their depot personnel would make the tank ready for service.
However, that couldn't work for the Soviets, as rather obviously the US army supply chain didn't exist there, the ammunition and spare parts were not in production there, imperial size tools didn't exist in any quantity, and so and and so forth. Even things like crew small arms were a problem as there wasn't a lot of room in a WWII tank, and if the existing storage locations wouldn't fit the Soviet submachine guns then where do they put them without redesigning and rebuilding the interior? And if the tank had pistol ports (a common feature in Soviet tanks), would a Soviet submachine gun fit a pistol port that was sized to fit an American submachine gun? All of these issues were specified to the last detail for the Soviets' own tanks, and they expected the same for foreign tanks as well.
There were also problems in how the tanks were shipped. Very often the tanks were shipped in a partially disassembled state with machine guns, radios, sights, and other internal kit removed and shipped separately. However, the shipments weren't coordinated, so the Soviets would often get tanks with no machine guns, no ammunition, no radios, and various other important bits missing. The tanks would then sit about in a depot waiting for this other kit to arrive, but which might never arrive. Sometimes this was due to the missing bits being on another ship in the convoy which was sunk, but mostly it seemed to be the stuff was never sent, or at least it wasn't sent to the Soviets.
So what had to happen was the Soviet liaison officers met with their American counterparts and bent their ears over the problems. The American liaison officers then got on the telegram to their hierarchy, and after a while things got sorted out. The Americans came to an agreement with the Soviets about what the tanks were to be equipped with, how many spare parts there were to be for each, how many loads of ammunition were to be supplied with the initial delivery, how the shipments were to be made, etc. Tanks then started to arrive equipped and ready for service and so could actually be useful. This didn't happen overnight though.
They had many of the same initial problems with tanks from Britain and Canada as well before those were sorted out.