  Suppose $X$ is a topological space and $S(X)$ is the vector lattice of all
equivalence classes of real-valued continuous functions on open dense subsets
of $X$. Although, $S(X)$ is not a normed lattice, we can have unbounded norm
topology ($un$-topology) on it. On the other hand, the recent result, due to
Wickstead, presents a representation approach for every Archimedean vector
lattice $E$ in terms of $S(X)$-spaces. In this paper, we show that this
representation is order continuous and when $E$ is order complete, it coincides
with the known Maeda-Ogasawara representation. Moreover, we obtain a similar
representation for an order continuous Banach lattice in terms of $S(X)$-spaces
that is a $un$-homeomorphism. Furthermore, as an application, we establish a
representation approach for the Fremlin projective tensor product between
Banach lattices, in terms of $S(X)$-spaces, as well.
