The best replacement for cs2 is cs3.

The best alternatives to cs2 are rated as following:
★★★★★  cs3
★★★★★  cs20
★★★★  elements
★★★  cs10
★★★  cs4
★★  photoshop elements
★★  25c
★★  cs6
★★  cs
★  csi3
★  cs1
★  cs3 boss
★  dyna comp
★  adobe cs3
★  csi a4
  dreamweaver 8
  csi5
  photoshop 7
  photoshop cs3
  csi a6
  adobe cs4
  elements 4.0
  adobe photoshop 7.0

Your alternative for cs2 is not listed? Suggest!
Speaking about cs2, one probably shouldn't forget about dreamweaver 8.

Other search terms related to cs2 and their ratings are:
★★★★★ dreamweaver 8
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Google Trends

Scale is based on the average worldwide traffic of cs2 in all years. Click on graph for more.
cs2
cs3
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