as .i. said this is the solution
but i recommend eclipse juno version
it has in help the "marketplace" that you can select the subclipse in search and install it so simple
and after all its good to learn how to fix your eclipse its a program you need to learn after all

PS:
1) jdk 1.7 installed
2) Slik-Subversion 1.7.7 for 32Bit Windows versions (installed)
3) Slik-Subversion 1.8.3.1 for 32Bit Windows versions (installed) / previous version deleted.
4) Subversion-client 1.7.8-1 for 32Bit Windows versions (installed)
5) Subversion-client 1.8.3 for 32Bit Windows versions (installed) / previous version deleted.
all this are not needed except 1 ^^ if you do as .i. said