Tripitaka Section Numbering Does anyone have a comprehensive side by side reference to Suttas numbering from different edition (PTS, VRI, etc.) of the Tripitaka? 

I have trouble with reconciliation of certain references to the Sutta names.
(UPDATED) 

After some digging, it seems that indeed there is no one standard that can be truly relied upon to work for all version of the tipitaka, at least for the Samyutta and the Anguttara. For the Digha and the Majjhima, it's pretty simple to say DN 22 or MN 10, and I think the order and numbering is pretty consistent across the board.

And no, unfortunately, there doesn't seem to be any such chart as you are looking for. We discussed this some time ago on the Yahoo! Pali Study list (2011) and as John Kelly said:


  For the Nikayas, clearly there is no issue for DN and MN. It is SN
  and AN that are problematic. The problem arises because the original Pali has
  no numbers and the various editions of the Pali (Be, Ce, and so on) use
  differing numbering schemes based on how their editors choose to separate the
  suttas.


What we do have:

http://www.suttacentral.net has a full concordance for all of the nikayas between the system used internally by the Pali Text Society and the system employed by Bhikkhu Bodhi (and ATI and the DPR). For example (picked at random):

http://suttacentral.net/sn28


    ID          Title                   Vol/Page

    SN 28.1     Vivekaja                SN iii 235      
    SN 28.2     Avitakka                SN iii 235      
    SN 28.3     Piti                    SN iii 236      
    SN 28.4     Upekkhā                 SN iii 237      
    SN 28.5     Ākāsānañc­āyatana        SN iii 237         
    SN 28.6     Viññāṇañc­āyatana        SN iii 237         
    SN 28.7     Ākiñcaññ­āyatana         SN iii 237         
    SN 28.8     Neva­saññānā­saññāyatana  SN iii 237        
    SN 28.9     Nirodhasamāpatti        SN iii 238      
    SN 28.10    Sūcimukhī               SN iii 238



ID here refers to the international standard: samyutta #28, sutta #1-10. 

Vol/Page refers to the PTS volume (three) and page numbers 235-8.

So, given a reference like "SN 28.5" or "SN iii.237", you could check this chart and see that the first refers to the Ākāsānañc­āyatana Sutta, and the second may refer to one of five suttas, including the Ākāsānañc­āyatana Sutta. Given that these are the two most common systems in use, this is probably the best you are going to get.

Also, as noted, ATI has notations for all of its suttas (it uses the international standard), and gives both the PTS and Bodhi page numbers. They also have a conversion chart for the Samyutta between the VRI and "modern" systems (the DPR actually accords with the modern system in its numbering).

Further, the VRI Tipitaka (and the Digital Pali Reader based on it) has notations for volume and page numbers of each of the major versions of the Tipitaka (Thai, Burmese, Sri Lankan and PTS), in case you come across that sort of notation.

Finally, as a bonus, the DPR has a title search function, by which you can do the opposite - given a sutta title, you can track down where it is in the tipitaka.

So, sorry to fudge my answer again and again, but here it is in (hopefully) final form.