The last update for this box was April 24th (I Think) - This should give you the auto-update:
System Information
Model DVB-XC EX5000 TDA
S/w Ver 1.o ST4 JUL 15 2008
h/w Ver 2.ot K5 +D
Bootstrap v001
S/w Build Kuro
The above is for the newer Pvr version - your s/w ver date should be around 22nd April
just download the bigmaq toolbar all the latest files are there very handy to have just punch bigmaq toolbar in google roud: install the toolbar makes things very easy as alot of sites have give sacked there download sections