I shouldn't tell you this, because the knowledge is open to extreme abuse by the irresponsible...
Displaying sticky notes in a list column
This is for transactions (directly owned sticky notes)
Find("Stickies.Message", "FileNum=5 and OwnerSeq="+SequenceNumber, 9)
File number 5 is Transactions. All notes live in the Stickies table and are keyed on a combination of FileNum (owning file) and OwnerSeq.
Searching sticky notes
PositionInText(Find("Stickies.Message", "FileNum=5 and OwnerSeq="+SequenceNumber, 99), "some word")
Note that this requires a considerable degree of inefficient heavy lifting by the database. Do it over a slow network on a large file and suffer the consequences.
In particular, using Find() in a column formula defeats the new caching scheme that makes v7 fast even over slow networks.