Cannot install lilypond on a shared Hostmonster server

[Mike]

Hi there, sorry I'm not too versed in Linux. I'm having trouble installing
Lilypond on a Hostmonster account. The host is shared, and I am not root, so
I don't have complete freedom.
I downloaded lilypond-2.18.2-1.linux-64.sh in
/home1/myaccountname/lilypond_install, made it executable and then issued
./lilypond-2.18.2-1.linux-64.sh --prefix /home1/myaccountname/
from that directory (/home1/myaccountname/lilypond_install).
After successfully creating dirs and binaries, I get loads of errors when
untarring, see below.
Does it mean that I just cannot install it unless I buy a virtual server all
for myself? Any suggestions on what to ask/request from Hostmonster's support?

Thanks!
Mike

tar: ./usr/lib/libgs.so: Cannot create symlink to `libgs.so.8.70':
Permission denied
tar: ./usr/lib/libgmodule-2.0.so: Cannot create symlink to
`libgmodule-2.0.so.0.2105.0': Permission denied