Here is the dig output. It shows the cname was sent so i'm not sure why nslookup doesn't, other than as Hamish said that it's depreciated....One thing does look off though. The response doesn't show the resolution of the cname response. The second output below shows a query to a cname created through ZoneRunner, there are obvious differences.
H:\>dig @10.226.133.194 test1.test.com. a
; <<>> DiG 9.9.2 <<>> @10.226.133.194 test1.test.com. a
; (1 server found)
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 7526
;; flags: qr aa rd ad; QUERY: 1, ANSWER: 1, AUTHORITY: 0, ADDITIONAL: 1
;; WARNING: recursion requested but not available
;; OPT PSEUDOSECTION:
; EDNS: version: 0, flags:; udp: 4096
;; QUESTION SECTION:
;test1.test.com. IN A
;; ANSWER SECTION:
test1.test.com. 0 IN CNAME test.test.com.
H:\>dig @10.226.133.194 test2.test.com. a
; <<>> DiG 9.9.2 <<>> @10.226.133.194 test2.test.com. a
; (1 server found)
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 6554
;; flags: qr aa rd; QUERY: 1, ANSWER: 2, AUTHORITY: 1, ADDITIONAL: 2
;; WARNING: recursion requested but not available
;; OPT PSEUDOSECTION:
; EDNS: version: 0, flags:; udp: 4096
;; QUESTION SECTION:
;test2.test.com. IN A
;; ANSWER SECTION:
test2.test.com. 300 IN CNAME test.test.com.
test.test.com. 300 IN A 10.10.10.10
;; AUTHORITY SECTION:
test.com. 300 IN NS ns1.lab.company.com.
;; ADDITIONAL SECTION:
ns1.lab.company.com. 300 IN A 10.226.133.194