How to map Arabidopsis reference ids to locus id for the newer arrays

Question

[anc.informatics]

I normalized a batch of newer Affymetrix microarray data using oligo package. However, unlike the Affy package that provides the probe ids, oligo gave the reference ids corresponding to gene expression (for ex, 13320001, 13320003). In this case, how can I retrieve locus id or probe ids for each gene expression (ie, id like AT3G44730 or 264474_s_at) ?

An example of such reference ids mapped to gene expression can be seen in NCBI GEO