I am trying to install drools. I have Eclipse Helios Service Release 2 installed on my Mac OS-X.

When I instal new software at toto - http://download.jboss.org/jbosstools/updates/JBossTools-3.1.1.GA/ I get the following message. What do I need to do to install drools?

Cannot complete the install because of a conflicting dependency.
Software being installed: Seam Tools 3.1.1.v201006011046R-H111-GA (org.jboss.tools.seam.feature.feature.group 3.1.1.v201006011046R-H111-GA)
Software currently installed: Eclipse IDE for Java Developers 1.3.2.20110301-1807 (epp.package.java 1.3.2.20110301-1807)
Only one of the following can be installed at once:
International Components for Unicode for Java (ICU4J) 4.4.2.v20110208 (com.ibm.icu 4.4.2.v20110208)
International Components for Unicode for Java (ICU4J) 4.2.1.v20100412 (com.ibm.icu 4.2.1.v20100412)
International Components for Unicode for Java (ICU4J) 4.0.1.v20090822 (com.ibm.icu 4.0.1.v20090822)
International Components for Unicode for Java (ICU4J) 4.0.1.v20090415 (com.ibm.icu 4.0.1.v20090415)
Only one of the following can be installed at once:
Search Support 3.5.1.r351_v20090708-0800 (org.eclipse.search 3.5.1.r351_v20090708-0800)
Search Support 3.7.0.v20110505-0800 (org.eclipse.search 3.7.0.v20110505-0800)
Search Support 3.6.0.v20100520-0800 (org.eclipse.search 3.6.0.v20100520-0800)
Only one of the following can be installed at once:
Hibernate 3.0 XML 3.1.1.v201006011046R-H111-GA (org.jboss.tools.hibernate.xml 3.1.1.v201006011046R-H111-GA)
Hibernate 3.0 XML 3.4.0.v20110624-0507-H6-M2 (org.jboss.tools.hibernate.xml 3.4.0.v20110624-0507-H6-M2)
Cannot satisfy dependency:
From: Eclipse IDE for Java Developers 1.3.2.20110301-1807 (epp.package.java 1.3.2.20110301-1807)
To: org.eclipse.epp.package.java.feature.feature.group [1.3.2.20110301-1807]
Cannot satisfy dependency:
From: EPP Java Package 1.3.2.20110301-1807 (org.eclipse.epp.package.java.feature.feature.group 1.3.2.20110301-1807)
To: org.eclipse.platform.feature.group [3.6.2.r362_v20110210-9gF78Gs1FrIGnHDHWkEcopoN8AmxeZflGDGKQi]
Cannot satisfy dependency:
From: Dali Java Persistence Tools - Core 2.2.1.v200908270220 (org.eclipse.jpt.core 2.2.1.v200908270220)
To: bundle org.eclipse.jst.j2ee.core [1.1.200,1.2.0)
Cannot satisfy dependency:
From: J2EE Core Component 1.1.301.v200908181930 (org.eclipse.jst.j2ee.core 1.1.301.v200908181930)
To: bundle com.ibm.icu [3.4.4,4.1.0)
Cannot satisfy dependency:
From: J2EE Core Component 1.1.301.v200911302230 (org.eclipse.jst.j2ee.core 1.1.301.v200911302230)
To: bundle com.ibm.icu [3.4.4,4.1.0)
Cannot satisfy dependency:
From: Eclipse Platform 3.6.2.r362_v20110210-9gF78Gs1FrIGnHDHWkEcopoN8AmxeZflGDGKQi (org.eclipse.platform.feature.group 3.6.2.r362_v20110210-9gF78Gs1FrIGnHDHWkEcopoN8AmxeZflGDGKQi)
To: org.eclipse.rcp.feature.group [3.6.2.r362_v20101104-9SAxFMKFkSAqi8axkv1ZjegmiBLY]
Cannot satisfy dependency:
From: Eclipse Platform 3.6.2.r362_v20110210-9gF78Gs1FrIGnHDHWkEcopoN8AmxeZflGDGKQi (org.eclipse.platform.feature.group 3.6.2.r362_v20110210-9gF78Gs1FrIGnHDHWkEcopoN8AmxeZflGDGKQi)
To: org.eclipse.search [3.6.0.v20100520-0800]
Cannot satisfy dependency:
From: Eclipse RCP 3.6.2.r362_v20101104-9SAxFMKFkSAqi8axkv1ZjegmiBLY (org.eclipse.rcp.feature.group 3.6.2.r362_v20101104-9SAxFMKFkSAqi8axkv1ZjegmiBLY)
To: com.ibm.icu [4.2.1.v20100412]
Cannot satisfy dependency:
From: Hibernate Tools 3.3.1.v201006011046R-H111-GA (org.hibernate.eclipse.feature.feature.group 3.3.1.v201006011046R-H111-GA)
To: org.jboss.tools.hibernate.jpt.core [3.3.1.v201006011046R-H111-GA]
Cannot satisfy dependency:
From: Hibernate Tools 3.4.0.v20110624-0507-H6-M2 (org.hibernate.eclipse.feature.feature.group 3.4.0.v20110624-0507-H6-M2)
To: org.jboss.tools.hibernate.xml [3.4.0.v20110624-0507-H6-M2]
Cannot satisfy dependency:
From: Hibernate Jdt Core 3.3.1.v201006011046R-H111-GA (org.jboss.tools.hibernate.jpt.core 3.3.1.v201006011046R-H111-GA)
To: bundle org.eclipse.jpt.core [2.2.0,2.2.2)
Cannot satisfy dependency:
From: JBoss Tools JSF UI 3.3.0.v20110624-0545-H5-M2 (org.jboss.tools.jsf.ui 3.3.0.v20110624-0545-H5-M2)
To: bundle org.eclipse.search 3.6.100
Cannot satisfy dependency:
From: JBoss Tools RichFaces 3.1.1.v201006011046R-H111-GA (org.jboss.tools.richfaces.feature.feature.group 3.1.1.v201006011046R-H111-GA)
To: org.jboss.tools.hibernate.xml [3.1.1.v201006011046R-H111-GA]
Cannot satisfy dependency:
From: JBoss Tools RichFaces 3.3.0.v20110624-0545-H5-M2 (org.jboss.tools.richfaces.feature.feature.group 3.3.0.v20110624-0545-H5-M2)
To: org.jboss.tools.jsf.ui [3.3.0.v20110624-0545-H5-M2]
Cannot satisfy dependency:
From: Seam Tools 3.1.1.v201006011046R-H111-GA (org.jboss.tools.seam.feature.feature.group 3.1.1.v201006011046R-H111-GA)
To: org.hibernate.eclipse.feature.feature.group 3.2.0
Cannot satisfy dependency:
From: Seam Tools 3.1.1.v201006011046R-H111-GA (org.jboss.tools.seam.feature.feature.group 3.1.1.v201006011046R-H111-GA)
To: org.jboss.tools.richfaces.feature.feature.group 2.0.0