Mac Crashes "how to read"

I have been getting the same crash report error multiple times a day and it came out of no where recently. Does anyone here know how or could refer to me a person/source that would be able to help me or teach me how to read these reports? It's rather annoying and I would like to resolve this issue as soon as possible.

I'm using a Macbook running leopard 10.5.5.
(Mac Crash Error Report)
Sat Oct 4 21:46:46 2008
panic(cpu 0 caller 0x001A8CEC): Kernel trap at 0x00008fa1, type 14=page fault, registers:
CR0: 0x8001003b, CR2: 0x0000010b, CR3: 0x010b7000, CR4: 0x00000660
EAX: 0x045debc0, EBX: 0x34539000, ECX: 0x00000000, EDX: 0x04694f80
CR2: 0x0000010b, EBP: 0x3dd23ed8, ESI: 0x34539000, EDI: 0x00000000
EFL: 0x00010283, EIP: 0x00008fa1, CS: 0x00000008, DS: 0x00000010
Error code: 0x00000000

Backtrace (CPU 0), Frame : Return Address (4 potential args on stack)
0x3dd23cc8 : 0x12b0fa (0x459234 0x3dd23cfc 0x133243 0x0)
0x3dd23d18 : 0x1a8cec (0x4627a0 0x8fa1 0xe 0x461f50)
0x3dd23df8 : 0x19eed5 (0x3dd23e10 0x202 0x3dd23ed8 0x8fa1)
0x3dd23e08 : 0x8fa1 (0xe 0x48 0x10 0x10)
0x3dd23ed8 : 0x4163c0 (0x34539000 0x0 0x34539000 0x34539000)
0x3dd23f48 : 0x416757 (0x34539000 0x4173fa 0x3f2a200 0x19d6a0)
0x3dd23f78 : 0x13eb1d (0x34539000 0x0 0x1a236f 0x4f813c8)
0x3dd23fc8 : 0x19eccc (0x0 0x0 0x1a20b5 0x3e29e40)
Backtrace terminated-invalid frame pointer 0

BSD process name corresponding to current thread: kernel_task

Mac OS version:
9F33

Kernel version:
Darwin Kernel Version 9.5.0: Wed Sep 3 11:29:43 PDT 2008; root:xnu-1228.7.58~1/RELEASE_I386
System model name: MacBook3,1 (Mac-F22788C8)

Sat Oct 4 22:03:12 2008
panic(cpu 1 caller 0x0039B7A1): "m_free: freeing an already freed mbuf"@/SourceCache/xnu/xnu-1228.7.58/bsd/kern/uipc_mbuf.c:3575
Backtrace (CPU 1), Frame : Return Address (4 potential args on stack)
0x343f7608 : 0x12b0fa (0x459234 0x343f763c 0x133243 0x0)
0x343f7658 : 0x39b7a1 (0x491df8 0x410e100 0x64 0x64)
0x343f76d8 : 0xc24d00 (0x30068200 0x30068200 0x0 0x0)
0x343f77e8 : 0xc24e58 (0x34347000 0x34347000 0x30068200 0x2)
0x343f7848 : 0xc2502a (0x34347000 0x34347000 0x0 0x0)
0x343f7878 : 0xc26177 (0x34347000 0x34347000 0x30068200 0x41f90e)
0x343f7898 : 0x622186 (0x34347000 0x30068200 0x0 0x42014d)
0x343f78c8 : 0x42100a (0x3f7b680 0x3f7b680 0x3f7a340 0x343f794c)
0x343f78f8 : 0x62222b (0x3f6ce80 0x62213a 0x3f7b680 0x3f7a340)
0x343f7928 : 0x6224c4 (0x3f7b680 0x3f7a340 0x343f794c 0x1a7c13)
0x343f7968 : 0x62299a (0x3f7b680 0x216 0x343f7998 0x228228)
0x343f7998 : 0x61de0b (0x3f7b680 0x30068200 0x0 0x0)
0x343f79d8 : 0x215d27 (0x4758604 0x30068200 0x6120e00 0x343f7a18)
0x343f7a58 : 0x227ee6 (0x4758604 0x2 0x30068200 0x41551e0)
0x343f7a88 : 0x241a2e (0x4758604 0x2 0x30068200 0x41551e0)
0x343f7bd8 : 0x2485ca (0x30068200 0x1 0x0 0x6120dfc)
Backtrace continues...
Kernel loadable modules in backtrace (with dependencies):
com.Ralink.driver.RT73(1.1.6)@0xc0a000->0xc3efff
dependency: com.apple.iokit.IOPCIFamily(2.4.1)@0x592000
dependency: com.apple.iokit.IONetworkingFamily(1.6.0)@0x613000
dependency: com.apple.iokit.IOUSBFamily(3.1.5)@0x5e4000
com.apple.iokit.IONetworkingFamily(1.6.0)@0x613000->0x628fff

BSD process name corresponding to current thread: smbclient

Mac OS version:
9F33

Kernel version:
Darwin Kernel Version 9.5.0: Wed Sep 3 11:29:43 PDT 2008; root:xnu-1228.7.58~1/RELEASE_I386
System model name: MacBook3,1 (Mac-F22788C8)


The error above was received as my computer crashed just again after I posted the above.