well, I was only on 1.4, so I am unsure. someone on rcgroups said to use the sploodge method to get it to go down to 1.3.2...
you may need to try a combination of different things to get it to work
there is only 1 component that has been updated from 1.3.2 to 1.4.1
[00013865]Version checking[1]...
[00013937][03 05][00] v34.2.0.9 -> v34.2.0.9
[00014012][03 06][00] v2.3.0.13 -> v2.3.0.13
[00014060][04 00][00] v1.40.0.0 -> v1.41.0.0 need upgrade.
[00014121][09 00][00] v1.7.0.3 -> v1.7.0.3
[00014240][11 00][00] v1.7.0.0 -> v1.7.0.0
[00014326][12 00][00] v1.10.0.0 -> v1.10.0.0
[00014401][12 01][00] v1.10.0.0 -> v1.10.0.0
[00014493][12 02][00] v1.10.0.0 -> v1.10.0.0
[00014567][12 03][00] v1.10.0.0 -> v1.10.0.0
[00014700][15 00][00] v1.1.2.0 -> v1.1.2.0
[00014783][17 00][00] v1.1.1.7 -> v1.1.1.7
[00014902][17 01][00] v1.0.2.7 -> v1.0.2.7
[00014961][19 00][00] v1.0.8.96 -> v1.0.8.96
[00014999][01 00][00] v1.23.3419 -> v1.23.3419
[00015035][01 01][00] v1.23.3419 -> v1.23.3419
[00015089][08 00][00] v0.12.0.4 -> v0.12.0.4
[00015125]Done.
so I don't think its a major change...