Extract data from a string - Varying length, between spaces

Hi,

I have a string (as below - Call them A1:A4) which I would like to seperate into 4 columns (Call them B1:E4).

I have successfully seperated the first part using MID (It's always 5 digits) but the second part has a varing length which then impacts on the third and fourth parts of the string.... Any ideas?

87261 WIMBLEDON 10:08 10:10
87169 NEWMALDEN PASS 10:13
87171 SURBITON PASS 10:15
87177 HMPTNCTJN PASS 10:16

To add to this I am using the POCKET PC version of Excel which does not have all functions so at the moment I am limited to which functions I can use (Can you add functions to the PPC?).

As you will see one thing common to the above strings is seperation by spaces.

Thanks for any help. L.