well....maybe...
 
If the stand alone is a newer version of Pervasive (as I think yours is), then that aspect is no problem.  If the stand alone was older Pervasive version, then there could be a problem.  I have been working with another user with Pervasive 8 on the live system and PSQL 2000 on a stand alone and it is a problem because the PSQL 2000 can't read the PSQL 8 file format.    
 
As for Evo versions, it depends on how different they are and what program functions you use.  There was a recent (12/07 or 3/08, I would have to check) rebuild of the DC (Labor collection in DC-A, B, C) files, so if you use that function then you will have problems.  Otherwise, unless you are Way behind on the live system (as in 2005 which I know you are not), you are OK.