sort question

[revinfo1155 at aol.com]

 Greetings,
 
 I need a field to sort numerically and when I try it I get the result below. I checked the docs and experimented with the numberformat without success. Help!
 
jack

 

1.101-
10.101- 
10.201-
10.301.1-
10.351-
10.401-
10.501-
11.101.1-
11.151- 
2.101-
2.301-
20.101-
3.101-
4.101- 
4.991-
5.101.1- 
5.151-
5.201-
5.301-
5.351.1-
5.401-
5.451-
5.501-
5.651-
5.701-
6.101.1-
6.201.1-
6.301-
6.401.1-
7.101-
7.151.1-
7.201.1-
7.251-
7.401-
7.501.1-
8.101-
8.301-
9.101.1-
9.351-