Update readme.

README

@@ -16,13 +16,34 @@ Basic *nix build instructions:
 	the include files and library files into the system directory.
 	(Do NOT install the ati amd sdk if you are on nvidia)
 
+The easiest way to install the ATI AMD SPP sdk on linux is to actually put it
+into a system location. Then building will be simpler. Download the correct
+version for either 32 bit or 64 bit from here:
+	http://developer.amd.com/sdks/AMDAPPSDK/downloads/Pages/default.aspx
+
+This will give you a file with a name like AMD-APP-SDK-v2.4-lnx64.tgz
+
+Then:
+
+sudo su
+cd /opt
+tar xf /path/to/AMD-APP-SDK-v2.4-lnx64.tgz
+cd /
+tar xf /opt/AMD-APP-SDK-v2.4-lnx64/icd-registration.tgz
+ln -s /opt/AMD-APP-SDK-v2.4-lnx64/include/CL /usr/include
+ln -s /opt/AMD-APP-SDK-v2.4-lnx64/lib/x86_64/* /usr/lib/
+ldconfig
+
+If you are on 32 bit, x86_64 in the 2nd last line should be x86
+
+	To actually build:
+
 	./autogen.sh	# only needed if building from git repo
 	CFLAGS="-O3 -Wall -march=native" ./configure
 	or if you haven't installed the ati files in system locations:
 	CFLAGS="-O3 -Wall -march=native -I<path to AMD APP include>" LDFLAGS="-L<path to AMD APP lib/x86_64> ./configure
 	make
 	
-	Note that you need to use /x86_64 for 64bit and /x86 for 32bit builds
 	If it finds the opencl files it will inform you with
 	"OpenCL: FOUND. GPU mining support enabled."
 
@@ -47,7 +68,7 @@ Usage instructions:  Run "cgminer --help" to see options.
 
 Also many issues and FAQs are covered in the forum thread
 dedicated to this program,
-	http://forum.bitcoin.org/index.php?topic=21275.0
+	http://forum.bitcoin.org/index.php?topic=28402.0
 
 The output line shows the following:
 [(5s):204.4  (avg):203.1 Mh/s] [Q:56  A:51  R:4  HW:0  E:91%  U:2.47/m]