oracle->postgresql references

i'm starting to research conversion from oracle 8i to postgresql on behalf
of a client. in looking at the techdocs site, i found that the following
two links are dead:

Oracle to Postgres Conversion by James Shannon, Ben Adida, and Don Baccus

Oracle Style Data Dictionary views for PostgreSQL by Chris Brown

anyone know where i can find these articles?

anyone have any other good web sites, papers, or other relevant items?

thanks,
  richard
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Richard Welty                                         rwelty@averillpark.net
Averill Park Networking                                         518-573-7592
              Unix, Linux, IP Network Engineering, Security