The sealed orders I was talking about were aboard the Russian ships that visited America in 1863 during the Laird Rams affair, not the Trent affair. We're talking about two different time periods here.
There never was a "Laird Rams Affair," in the sense of an incident which Britain and the Union ever came close to a declaration of war, or even caused a large public outcry in the Union at the time. The U.S. government found out about the rams, Ambassador Adams protested, and the British government seized the ships. That was about the extent of it. More importantly, unlike the Trent Affair, the Laird Rams incident never escalated into an international crisis which other countries would be aware of and be thinking in terms of "What shall we do if Britain declares war on the United States?"
Furthermore, after the issuance of the Emancipation Proclamation, there was virtually no chance that Britain would intervene on behalf of the Confederacy.
Why would the Russians have sent the supposed sealed orders with their ships in mid-1863 when there was no ongoing crisis between the Union and Great Britain, and virtually no prospect that Britain would declare war on the United States? Such an action would have been completely illogical, given the circumstances of the time.
If the Russians were REALLY such great supporters of the Union that they would have been willing to go to war on their behalf, why didn't they send the fleet during the TRENT AFFAIR? They were conspicuously absent during the one and only time that war between the Union and Great Britain was likely to occur.
Indeed, the ONLY reason why the Russians would have sent their fleet to the USA at THAT particular time (1863) was to get them out into the open seas, away from their own ports, while they went into Poland. They strongly feared that Britain would intervene in the Polish Crisis, and that's why they sent their fleet to safer climes.