VERY VERY URGENT--PARSING PROBLEM

I V ONE XML FILE OF 13 MB..WHILE PARSING IT'S TAKING LONG TIME & ULTIMATELY MACHINE GET STRUCKED..PL. HELP ME...
[124 byte] By [Partha_Olimmsa] at [2007-11-26 14:57:29]
# 1
wHAT KIND OF PARSER DID U USED FOR XML PARSING
JDOMa at 2007-7-8 8:46:12 > top of Java-index,Enterprise & Remote Computing,Enterprise Technologies...