Realistic Short Term Goals?

Are their A,B,C times in Masters? Just curious, as to what would be respectable long-term and short-term goals would be for the 50, 100, and 200 free. I am 32 and have taken a 15 year hiatus from competitive swimming. I have been back for about a month now, and am starting to get back my rhythm and some stamina. Without doing flip turns or going from the starting blocks I am averaging (60 to 75 % of max) about 1:20 to 1:30 (up to even 1:40 by the end of the week) for 15 X 100yds and 30 seconds to a minute rest (depending on how late in the week my workout is). I know I have a long way to go, but would appreciate any advice on some realistic goals for just getting back in the groove. Thanks in advance. Hook'em Blue