j2ee deploytool not opening!!!

I have j2ee on windows 98 and have successfully deployed a ejb previously on it ,(the deployment was ok but I could not run the client) now when I want to reopen the deploytool by first running the j2eee server and then setting home and path and then I say deploytool in the command prompt , what I get is
the first deploytool screen and then my ms dos prompt runs a long list of errors, I tried finding the .ear files and delete them so that deploytool starts without the previous ejb I deployed but I can't find the .ear file anywhere on my computer what should I check now???Please help

hello!
the exception is nullpointer exception.
to get the deploytool again you may try the following.
-find delete .ear files you have created for yr.application deployment(in the directory you mentioned while deployment).
-find and delete .jar files (which will be starting with yr.application name).these files will be in -
C:\j2sdkee...\repository\computername\applications....here delete all the jar files which are particular to yr. application.
there are still jar files in \repository\gnrtemp\...
here also delete the jar files of yr.applications.
-delete log files.
-still there is another directory you have to look for.
C:\windows\j2eedeploytool\...
here there will be yr.application files.delete them.
if you do all these you can start the deploytool even without warnings.
-there is another way of doing this.execute cleanup.bat in j2sdkee...\bin directory after shutting down the server.but to what extent it does i don't know.
pl.verify the directory structure and names.
only thing when deleting just be careful
that's all deploytool can be run

Thanks once more, your really cool!!!
I did not find any .ear files but I deleted the jar files like u
said, I had copied a jar file to the c:\j2sdkee1.2.1\bin which I noticed and deleted and the deploytool opened after giving a warning that it could not find the previous EJB file.
Thanks