-Recently while playing FO3 within the tale of two waste lands mod .It crashed to desktop with an error message .
-If its a mod conflict .I would like to sort it out but im not sure what the real problem is .How ever for trouble shooting purposes my mod load order list is attached under to view it .If possible i would like to know whats wrong where .
First off deactivate "EVE FNV - NO DLC.esp" and "EVE FNV - NO GRA.esp" and remove them from your data folder, you do not need or want them with a TTW set up as you have to have all the DLC including GRA to run TTW.
Now to your load order... I'm afraid that it's a bit of a mess, check the Alpha Download page, Manual Installation, Phase 3 to see the order that you need, at least for the Game files.
I would also recommend that you load TTW Fixes (See recent content as it's recently been updated)
But if you are crashing mid game it's not likely caused by load order issues so I suggest that you try the following:
Get "NVAC" from the Fallout NV Nexus for which you will need "NVSE" (Google it if you don't already have it) NVAC greatly improves the stability of the New Vegas engine for the vast majority.
If that does not work "ENBoost" from the Fallout NV Nexus changes how the game allocates memory freeing up some buffers and alleviating some memory issues (Particularly if you are using Hi-res textures)
The thing about any sort of modding is that you are generally dealing with content that is made by enthusiasts for enthusiasts, so if you want to use that content successfully it requires from you a modicum of investment in research, particularly if you want to get content from different mods working together perfectly.
A profound thought indeed ,never did occur to me .I even like the way you put it that different mods are from enthusiasts for enthusiasts .Yes research on what im enthusiastic about and how it should work well in balance with other things im enthusiastic about becomes necessary .The bad news is that im not that informed on various things .Its soo boring to read and read .
I find the best way is with play....
Install and use LOOT (http://loot.github.io/) that should help with your load order, play with it, here are a couple of vids by Gopher to watch https://www.youtube.com/watch?v=YzsBKYUrcbE https://www.youtube.com/watch?v=SzoyWugzZAw That explain about Load order and the LOOT tool... no reading involved. 
Install FNVEdit and play with it, build yourself a Merge Patch then go through and check every single record to ensure that the result is what you want, paying specific attention to the records highlighted in red or with red text. This can be a bit laborious but it is probably the best way to get yourself a modded game that works correctly and it's a great way of gaining a familiarity of the data structures inside mod plugins and how they operate. I would recommend the following video series (again by Gopher) https://www.youtube.com/watch?v=I-3c1a9cLL8&list=PL0E5E8CA384409B11 which gives a good grounding in modding New Vegas and includes a video on FNVEdit.
Just make sure that for every mod that you install you read and act on the associated instructions.
