SQL njection 2

how can i insert an isert command in a sql sentence that looks like select * from parameter???
the database is access and when i try to insert something like

pameter=table;insert%20into%20clientes(uspw,pwus)%20values('j','j')

the ODBC returns this error

error '80040e14'

[Microsoft][Controlador ODBC Microsoft Access] Se encontraron caracteres después del final de la instrucción SQL.

/visornew.asp, line 10

it means: "there are characteres after the the sql sentence"

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falcifer