And for Amit or for those that are still on SS2K (i.e. without SSIS), below is some VB script code that lets you transfer an image column to/from a file. Thus adoField is an ADO recordset field. The only thing I found that you need to be aware of is that for going from an image column to a file the image column needs to be the last column in your query, otherwise the ADODB.Stream Write method fails. If you can connect to DB2 using ADO this should work.
Somewhere else on this forum I saw a one line OPENROWSET statement for doing this in SS2005. With Java it's pretty straight forward as well.
Set objStream = CreateObject("ADODB.Stream")
objStream.Type = 1 ' adTypeBinary
objStream.Open
objStream.Write adoField.Value
objStream.SaveToFile "c:\temp\my.doc", 1 ' Options=adSaveCreateNotExist=1
objStream.Close
Set objStream = CreateObject("ADODB.Stream")
objStream.Type = 1 ' adTypeBinary
objStream.Open
objStream.LoadFromFile "c:\temp\my.doc"
adoField.Value = objStream.Read
objStream.Close