Install R 2.10.1 on Windows XP Errors

I have just upgraded from 2.9.2 to 2.10.1 on my XP machine.

I rec'd the following error message:

Error in strsplit(x[ok], "[.-]") :
  5 arguments passed to .Internal(strsplit) which requires 6

I also tried update.packages(checkBuilt=TRUE, ask = FALSE)

update.packages(checkBuilt=TRUE, ask=FALSE)

Error: could not find function "update.packages"

Has anyone else experienced this - what is the fix ?

Thanks in advance.

Steve Friedman Ph. D.
Spatial Statistical Analyst
Everglades and Dry Tortugas National Park
950 N Krome Ave (3rd Floor)
Homestead, Florida 33034

Steve_Friedman at nps.gov
Office (305) 224 - 4282
Fax     (305) 224 - 4147